Home / 15,593.40-21,516.84-9,219.60

Finding the Fourth Proportional to 15,593.40, 21,516.84 and 9,219.60

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Solution

The fourth proportional to 15,593.40, 21,516.84 and 9,219.60 is: 12,721.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,593.40 : 21,516.84 = 9,219.60 : x
  2. Step 2: Convert to fraction form
    15,593.40/21,516.84 = 9,219.60/x
  3. Step 3: Cross multiply
    15,593.40x = 21,516.84 × 9,219.60
  4. Step 4: Simplify right side
    15,593.40x = 198,376,658.06
  5. Step 5: Solve for x
    x = 198,376,658.06/15,593.40
  6. Step 6: Final answer
    x = 12,721.83

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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.