Home / 12,545.55-18,818.33-5,615.19

Finding the Fourth Proportional to 12,545.55, 18,818.33 and 5,615.19

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Solution

The fourth proportional to 12,545.55, 18,818.33 and 5,615.19 is: 8,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.55 : 18,818.33 = 5,615.19 : x
  2. Step 2: Convert to fraction form
    12,545.55/18,818.33 = 5,615.19/x
  3. Step 3: Cross multiply
    12,545.55x = 18,818.33 × 5,615.19
  4. Step 4: Simplify right side
    12,545.55x = 105,668,470.36
  5. Step 5: Solve for x
    x = 105,668,470.36/12,545.55
  6. Step 6: Final answer
    x = 8,422.79

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.