Home / 15,691.30-23,521.05-9,421.95

Finding the Fourth Proportional to 15,691.30, 23,521.05 and 9,421.95

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Solution

The fourth proportional to 15,691.30, 23,521.05 and 9,421.95 is: 14,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691.30 : 23,521.05 = 9,421.95 : x
  2. Step 2: Convert to fraction form
    15,691.30/23,521.05 = 9,421.95/x
  3. Step 3: Cross multiply
    15,691.30x = 23,521.05 × 9,421.95
  4. Step 4: Simplify right side
    15,691.30x = 221,614,245.25
  5. Step 5: Solve for x
    x = 221,614,245.25/15,691.30
  6. Step 6: Final answer
    x = 14,123.38

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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.