Home / 15,306.68-21,123.44-8,593.76

Finding the Fourth Proportional to 15,306.68, 21,123.44 and 8,593.76

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Solution

The fourth proportional to 15,306.68, 21,123.44 and 8,593.76 is: 11,859.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.68 : 21,123.44 = 8,593.76 : x
  2. Step 2: Convert to fraction form
    15,306.68/21,123.44 = 8,593.76/x
  3. Step 3: Cross multiply
    15,306.68x = 21,123.44 × 8,593.76
  4. Step 4: Simplify right side
    15,306.68x = 181,529,773.73
  5. Step 5: Solve for x
    x = 181,529,773.73/15,306.68
  6. Step 6: Final answer
    x = 11,859.51

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Double scale
Find fourth proportional to 15,307.68, 21,124.82 and 8,594.76
Similar ratio
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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.