Home / 14,738.14-20,331.03-9,139.42

Finding the Fourth Proportional to 14,738.14, 20,331.03 and 9,139.42

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Solution

The fourth proportional to 14,738.14, 20,331.03 and 9,139.42 is: 12,607.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,738.14 : 20,331.03 = 9,139.42 : x
  2. Step 2: Convert to fraction form
    14,738.14/20,331.03 = 9,139.42/x
  3. Step 3: Cross multiply
    14,738.14x = 20,331.03 × 9,139.42
  4. Step 4: Simplify right side
    14,738.14x = 185,813,822.20
  5. Step 5: Solve for x
    x = 185,813,822.20/14,738.14
  6. Step 6: Final answer
    x = 12,607.68

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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.