Home / 18,279.48-27,421.32-7,184.70

Finding the Fourth Proportional to 18,279.48, 27,421.32 and 7,184.70

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Solution

The fourth proportional to 18,279.48, 27,421.32 and 7,184.70 is: 10,777.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.48 : 27,421.32 = 7,184.70 : x
  2. Step 2: Convert to fraction form
    18,279.48/27,421.32 = 7,184.70/x
  3. Step 3: Cross multiply
    18,279.48x = 27,421.32 × 7,184.70
  4. Step 4: Simplify right side
    18,279.48x = 197,013,957.80
  5. Step 5: Solve for x
    x = 197,013,957.80/18,279.48
  6. Step 6: Final answer
    x = 10,777.88

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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.