Home / 15,497.68-21,391.63-9,123.76

Finding the Fourth Proportional to 15,497.68, 21,391.63 and 9,123.76

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Solution

The fourth proportional to 15,497.68, 21,391.63 and 9,123.76 is: 12,593.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.68 : 21,391.63 = 9,123.76 : x
  2. Step 2: Convert to fraction form
    15,497.68/21,391.63 = 9,123.76/x
  3. Step 3: Cross multiply
    15,497.68x = 21,391.63 × 9,123.76
  4. Step 4: Simplify right side
    15,497.68x = 195,171,981.73
  5. Step 5: Solve for x
    x = 195,171,981.73/15,497.68
  6. Step 6: Final answer
    x = 12,593.63

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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.