Home / 18,300.57-25,245.04-11,132.68

Finding the Fourth Proportional to 18,300.57, 25,245.04 and 11,132.68

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Solution

The fourth proportional to 18,300.57, 25,245.04 and 11,132.68 is: 15,357.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.57 : 25,245.04 = 11,132.68 : x
  2. Step 2: Convert to fraction form
    18,300.57/25,245.04 = 11,132.68/x
  3. Step 3: Cross multiply
    18,300.57x = 25,245.04 × 11,132.68
  4. Step 4: Simplify right side
    18,300.57x = 281,044,951.91
  5. Step 5: Solve for x
    x = 281,044,951.91/18,300.57
  6. Step 6: Final answer
    x = 15,357.17

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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.