Home / 13,357.48-18,432.17-7,387.66

Finding the Fourth Proportional to 13,357.48, 18,432.17 and 7,387.66

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Solution

The fourth proportional to 13,357.48, 18,432.17 and 7,387.66 is: 10,194.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,357.48 : 18,432.17 = 7,387.66 : x
  2. Step 2: Convert to fraction form
    13,357.48/18,432.17 = 7,387.66/x
  3. Step 3: Cross multiply
    13,357.48x = 18,432.17 × 7,387.66
  4. Step 4: Simplify right side
    13,357.48x = 136,170,605.02
  5. Step 5: Solve for x
    x = 136,170,605.02/13,357.48
  6. Step 6: Final answer
    x = 10,194.33

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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.