Home / 14,641.27-20,205.59-9,261.78

Finding the Fourth Proportional to 14,641.27, 20,205.59 and 9,261.78

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Solution

The fourth proportional to 14,641.27, 20,205.59 and 9,261.78 is: 12,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,641.27 : 20,205.59 = 9,261.78 : x
  2. Step 2: Convert to fraction form
    14,641.27/20,205.59 = 9,261.78/x
  3. Step 3: Cross multiply
    14,641.27x = 20,205.59 × 9,261.78
  4. Step 4: Simplify right side
    14,641.27x = 187,139,729.35
  5. Step 5: Solve for x
    x = 187,139,729.35/14,641.27
  6. Step 6: Final answer
    x = 12,781.66

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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.