Home / 10,363.30-15,532.80-9,318.40

Finding the Fourth Proportional to 10,363.30, 15,532.80 and 9,318.40

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Solution

The fourth proportional to 10,363.30, 15,532.80 and 9,318.40 is: 13,966.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,363.30 : 15,532.80 = 9,318.40 : x
  2. Step 2: Convert to fraction form
    10,363.30/15,532.80 = 9,318.40/x
  3. Step 3: Cross multiply
    10,363.30x = 15,532.80 × 9,318.40
  4. Step 4: Simplify right side
    10,363.30x = 144,740,843.52
  5. Step 5: Solve for x
    x = 144,740,843.52/10,363.30
  6. Step 6: Final answer
    x = 13,966.68

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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.