Home / 10,318.28-15,465.90-9,487.94

Finding the Fourth Proportional to 10,318.28, 15,465.90 and 9,487.94

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Solution

The fourth proportional to 10,318.28, 15,465.90 and 9,487.94 is: 14,221.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,318.28 : 15,465.90 = 9,487.94 : x
  2. Step 2: Convert to fraction form
    10,318.28/15,465.90 = 9,487.94/x
  3. Step 3: Cross multiply
    10,318.28x = 15,465.90 × 9,487.94
  4. Step 4: Simplify right side
    10,318.28x = 146,739,531.25
  5. Step 5: Solve for x
    x = 146,739,531.25/10,318.28
  6. Step 6: Final answer
    x = 14,221.32

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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.