Home / 12,631.60-17,433.18-7,255.70

Finding the Fourth Proportional to 12,631.60, 17,433.18 and 7,255.70

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Solution

The fourth proportional to 12,631.60, 17,433.18 and 7,255.70 is: 10,013.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.60 : 17,433.18 = 7,255.70 : x
  2. Step 2: Convert to fraction form
    12,631.60/17,433.18 = 7,255.70/x
  3. Step 3: Cross multiply
    12,631.60x = 17,433.18 × 7,255.70
  4. Step 4: Simplify right side
    12,631.60x = 126,489,924.13
  5. Step 5: Solve for x
    x = 126,489,924.13/12,631.60
  6. Step 6: Final answer
    x = 10,013.77

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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.