Home / 7,825.15-11,740.16-6,998.14

Finding the Fourth Proportional to 7,825.15, 11,740.16 and 6,998.14

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Solution

The fourth proportional to 7,825.15, 11,740.16 and 6,998.14 is: 10,499.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.15 : 11,740.16 = 6,998.14 : x
  2. Step 2: Convert to fraction form
    7,825.15/11,740.16 = 6,998.14/x
  3. Step 3: Cross multiply
    7,825.15x = 11,740.16 × 6,998.14
  4. Step 4: Simplify right side
    7,825.15x = 82,159,283.30
  5. Step 5: Solve for x
    x = 82,159,283.30/7,825.15
  6. Step 6: Final answer
    x = 10,499.39

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Half scale
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Double scale
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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.