Home / 18,217.56-25,143.04-11,048.64

Finding the Fourth Proportional to 18,217.56, 25,143.04 and 11,048.64

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Solution

The fourth proportional to 18,217.56, 25,143.04 and 11,048.64 is: 15,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.56 : 25,143.04 = 11,048.64 : x
  2. Step 2: Convert to fraction form
    18,217.56/25,143.04 = 11,048.64/x
  3. Step 3: Cross multiply
    18,217.56x = 25,143.04 × 11,048.64
  4. Step 4: Simplify right side
    18,217.56x = 277,796,397.47
  5. Step 5: Solve for x
    x = 277,796,397.47/18,217.56
  6. Step 6: Final answer
    x = 15,248.83

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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.