Home / 10,830.30-16,245.45-7,331.10

Finding the Fourth Proportional to 10,830.30, 16,245.45 and 7,331.10

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Solution

The fourth proportional to 10,830.30, 16,245.45 and 7,331.10 is: 10,996.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,830.30 : 16,245.45 = 7,331.10 : x
  2. Step 2: Convert to fraction form
    10,830.30/16,245.45 = 7,331.10/x
  3. Step 3: Cross multiply
    10,830.30x = 16,245.45 × 7,331.10
  4. Step 4: Simplify right side
    10,830.30x = 119,097,018.50
  5. Step 5: Solve for x
    x = 119,097,018.50/10,830.30
  6. Step 6: Final answer
    x = 10,996.65

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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.