Home / 14,638.55-20,182.13-9,331.43

Finding the Fourth Proportional to 14,638.55, 20,182.13 and 9,331.43

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Solution

The fourth proportional to 14,638.55, 20,182.13 and 9,331.43 is: 12,865.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.55 : 20,182.13 = 9,331.43 : x
  2. Step 2: Convert to fraction form
    14,638.55/20,182.13 = 9,331.43/x
  3. Step 3: Cross multiply
    14,638.55x = 20,182.13 × 9,331.43
  4. Step 4: Simplify right side
    14,638.55x = 188,328,020.77
  5. Step 5: Solve for x
    x = 188,328,020.77/14,638.55
  6. Step 6: Final answer
    x = 12,865.21

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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.