Home / 18,143.76-27,220.68-10,358.04

Finding the Fourth Proportional to 18,143.76, 27,220.68 and 10,358.04

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Solution

The fourth proportional to 18,143.76, 27,220.68 and 10,358.04 is: 15,539.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.76 : 27,220.68 = 10,358.04 : x
  2. Step 2: Convert to fraction form
    18,143.76/27,220.68 = 10,358.04/x
  3. Step 3: Cross multiply
    18,143.76x = 27,220.68 × 10,358.04
  4. Step 4: Simplify right side
    18,143.76x = 281,952,892.27
  5. Step 5: Solve for x
    x = 281,952,892.27/18,143.76
  6. Step 6: Final answer
    x = 15,539.94

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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.