Home / 18,613.60-25,686.47-10,229.92

Finding the Fourth Proportional to 18,613.60, 25,686.47 and 10,229.92

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Solution

The fourth proportional to 18,613.60, 25,686.47 and 10,229.92 is: 14,117.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,613.60 : 25,686.47 = 10,229.92 : x
  2. Step 2: Convert to fraction form
    18,613.60/25,686.47 = 10,229.92/x
  3. Step 3: Cross multiply
    18,613.60x = 25,686.47 × 10,229.92
  4. Step 4: Simplify right side
    18,613.60x = 262,770,533.18
  5. Step 5: Solve for x
    x = 262,770,533.18/18,613.60
  6. Step 6: Final answer
    x = 14,117.13

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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.