Home / 13,630.68-18,785.52-9,381.96

Finding the Fourth Proportional to 13,630.68, 18,785.52 and 9,381.96

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Solution

The fourth proportional to 13,630.68, 18,785.52 and 9,381.96 is: 12,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.68 : 18,785.52 = 9,381.96 : x
  2. Step 2: Convert to fraction form
    13,630.68/18,785.52 = 9,381.96/x
  3. Step 3: Cross multiply
    13,630.68x = 18,785.52 × 9,381.96
  4. Step 4: Simplify right side
    13,630.68x = 176,244,997.22
  5. Step 5: Solve for x
    x = 176,244,997.22/13,630.68
  6. Step 6: Final answer
    x = 12,930.02

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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.