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Finding the Fourth Proportional to 10,998.30, 16,497.45 and 7,499.10

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Solution

The fourth proportional to 10,998.30, 16,497.45 and 7,499.10 is: 11,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,998.30 : 16,497.45 = 7,499.10 : x
  2. Step 2: Convert to fraction form
    10,998.30/16,497.45 = 7,499.10/x
  3. Step 3: Cross multiply
    10,998.30x = 16,497.45 × 7,499.10
  4. Step 4: Simplify right side
    10,998.30x = 123,716,027.30
  5. Step 5: Solve for x
    x = 123,716,027.30/10,998.30
  6. Step 6: Final answer
    x = 11,248.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 10,999.30, 16,498.95 and 7,500.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.