Home / 11,837.20-17,770.20-8,892.40

Finding the Fourth Proportional to 11,837.20, 17,770.20 and 8,892.40

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Solution

The fourth proportional to 11,837.20, 17,770.20 and 8,892.40 is: 13,349.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,837.20 : 17,770.20 = 8,892.40 : x
  2. Step 2: Convert to fraction form
    11,837.20/17,770.20 = 8,892.40/x
  3. Step 3: Cross multiply
    11,837.20x = 17,770.20 × 8,892.40
  4. Step 4: Simplify right side
    11,837.20x = 158,019,726.48
  5. Step 5: Solve for x
    x = 158,019,726.48/11,837.20
  6. Step 6: Final answer
    x = 13,349.42

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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.