Home / 10,319.70-15,479.55-9,785.10

Finding the Fourth Proportional to 10,319.70, 15,479.55 and 9,785.10

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Solution

The fourth proportional to 10,319.70, 15,479.55 and 9,785.10 is: 14,677.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,319.70 : 15,479.55 = 9,785.10 : x
  2. Step 2: Convert to fraction form
    10,319.70/15,479.55 = 9,785.10/x
  3. Step 3: Cross multiply
    10,319.70x = 15,479.55 × 9,785.10
  4. Step 4: Simplify right side
    10,319.70x = 151,468,944.71
  5. Step 5: Solve for x
    x = 151,468,944.71/10,319.70
  6. Step 6: Final answer
    x = 14,677.65

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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.