Home / 13,753.48-20,651.28-12,123.76

Finding the Fourth Proportional to 13,753.48, 20,651.28 and 12,123.76

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Solution

The fourth proportional to 13,753.48, 20,651.28 and 12,123.76 is: 18,204.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.48 : 20,651.28 = 12,123.76 : x
  2. Step 2: Convert to fraction form
    13,753.48/20,651.28 = 12,123.76/x
  3. Step 3: Cross multiply
    13,753.48x = 20,651.28 × 12,123.76
  4. Step 4: Simplify right side
    13,753.48x = 250,371,162.41
  5. Step 5: Solve for x
    x = 250,371,162.41/13,753.48
  6. Step 6: Final answer
    x = 18,204.20

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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.