Home / 15,329.61-21,155.45-9,363.96

Finding the Fourth Proportional to 15,329.61, 21,155.45 and 9,363.96

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Solution

The fourth proportional to 15,329.61, 21,155.45 and 9,363.96 is: 12,922.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,329.61 : 21,155.45 = 9,363.96 : x
  2. Step 2: Convert to fraction form
    15,329.61/21,155.45 = 9,363.96/x
  3. Step 3: Cross multiply
    15,329.61x = 21,155.45 × 9,363.96
  4. Step 4: Simplify right side
    15,329.61x = 198,098,740.76
  5. Step 5: Solve for x
    x = 198,098,740.76/15,329.61
  6. Step 6: Final answer
    x = 12,922.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.