Home / 13,400.76-18,493.20-7,432.59

Finding the Fourth Proportional to 13,400.76, 18,493.20 and 7,432.59

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Solution

The fourth proportional to 13,400.76, 18,493.20 and 7,432.59 is: 10,257.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.76 : 18,493.20 = 7,432.59 : x
  2. Step 2: Convert to fraction form
    13,400.76/18,493.20 = 7,432.59/x
  3. Step 3: Cross multiply
    13,400.76x = 18,493.20 × 7,432.59
  4. Step 4: Simplify right side
    13,400.76x = 137,452,373.39
  5. Step 5: Solve for x
    x = 137,452,373.39/13,400.76
  6. Step 6: Final answer
    x = 10,257.06

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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.