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Finding the Fourth Proportional to 18,349.10, 27,514.72 and 8,978.14

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Solution

The fourth proportional to 18,349.10, 27,514.72 and 8,978.14 is: 13,462.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,349.10 : 27,514.72 = 8,978.14 : x
  2. Step 2: Convert to fraction form
    18,349.10/27,514.72 = 8,978.14/x
  3. Step 3: Cross multiply
    18,349.10x = 27,514.72 × 8,978.14
  4. Step 4: Simplify right side
    18,349.10x = 247,031,008.22
  5. Step 5: Solve for x
    x = 247,031,008.22/18,349.10
  6. Step 6: Final answer
    x = 13,462.84

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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.