Home / 13,437.27-18,543.45-7,468.80

Finding the Fourth Proportional to 13,437.27, 18,543.45 and 7,468.80

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Solution

The fourth proportional to 13,437.27, 18,543.45 and 7,468.80 is: 10,306.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.27 : 18,543.45 = 7,468.80 : x
  2. Step 2: Convert to fraction form
    13,437.27/18,543.45 = 7,468.80/x
  3. Step 3: Cross multiply
    13,437.27x = 18,543.45 × 7,468.80
  4. Step 4: Simplify right side
    13,437.27x = 138,497,319.36
  5. Step 5: Solve for x
    x = 138,497,319.36/13,437.27
  6. Step 6: Final answer
    x = 10,306.95

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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.