Home / 11,918.95-16,454.27-8,397.88

Finding the Fourth Proportional to 11,918.95, 16,454.27 and 8,397.88

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Solution

The fourth proportional to 11,918.95, 16,454.27 and 8,397.88 is: 11,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.95 : 16,454.27 = 8,397.88 : x
  2. Step 2: Convert to fraction form
    11,918.95/16,454.27 = 8,397.88/x
  3. Step 3: Cross multiply
    11,918.95x = 16,454.27 × 8,397.88
  4. Step 4: Simplify right side
    11,918.95x = 138,180,902.68
  5. Step 5: Solve for x
    x = 138,180,902.68/11,918.95
  6. Step 6: Final answer
    x = 11,593.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.