Home / 13,437.12-18,542.40-7,468.48

Finding the Fourth Proportional to 13,437.12, 18,542.40 and 7,468.48

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Solution

The fourth proportional to 13,437.12, 18,542.40 and 7,468.48 is: 10,306.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.12 : 18,542.40 = 7,468.48 : x
  2. Step 2: Convert to fraction form
    13,437.12/18,542.40 = 7,468.48/x
  3. Step 3: Cross multiply
    13,437.12x = 18,542.40 × 7,468.48
  4. Step 4: Simplify right side
    13,437.12x = 138,483,543.55
  5. Step 5: Solve for x
    x = 138,483,543.55/13,437.12
  6. Step 6: Final answer
    x = 10,306.04

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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.