Home / 18,543.13-27,818.18-7,450.70

Finding the Fourth Proportional to 18,543.13, 27,818.18 and 7,450.70

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Solution

The fourth proportional to 18,543.13, 27,818.18 and 7,450.70 is: 11,177.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,543.13 : 27,818.18 = 7,450.70 : x
  2. Step 2: Convert to fraction form
    18,543.13/27,818.18 = 7,450.70/x
  3. Step 3: Cross multiply
    18,543.13x = 27,818.18 × 7,450.70
  4. Step 4: Simplify right side
    18,543.13x = 207,264,737.38
  5. Step 5: Solve for x
    x = 207,264,737.38/18,543.13
  6. Step 6: Final answer
    x = 11,177.44

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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.