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Finding the Fourth Proportional to 18,229, 27,341.06 and 7,127.96

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Solution

The fourth proportional to 18,229, 27,341.06 and 7,127.96 is: 10,690.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229 : 27,341.06 = 7,127.96 : x
  2. Step 2: Convert to fraction form
    18,229/27,341.06 = 7,127.96/x
  3. Step 3: Cross multiply
    18,229x = 27,341.06 × 7,127.96
  4. Step 4: Simplify right side
    18,229x = 194,885,982.04
  5. Step 5: Solve for x
    x = 194,885,982.04/18,229
  6. Step 6: Final answer
    x = 10,690.99

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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.