Home / 18,418.08-27,615.60-12,254.88

Finding the Fourth Proportional to 18,418.08, 27,615.60 and 12,254.88

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Solution

The fourth proportional to 18,418.08, 27,615.60 and 12,254.88 is: 18,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.08 : 27,615.60 = 12,254.88 : x
  2. Step 2: Convert to fraction form
    18,418.08/27,615.60 = 12,254.88/x
  3. Step 3: Cross multiply
    18,418.08x = 27,615.60 × 12,254.88
  4. Step 4: Simplify right side
    18,418.08x = 338,425,864.13
  5. Step 5: Solve for x
    x = 338,425,864.13/18,418.08
  6. Step 6: Final answer
    x = 18,374.65

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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.