Home / 17,877.12-24,670.84-9,919.68

Finding the Fourth Proportional to 17,877.12, 24,670.84 and 9,919.68

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Solution

The fourth proportional to 17,877.12, 24,670.84 and 9,919.68 is: 13,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.12 : 24,670.84 = 9,919.68 : x
  2. Step 2: Convert to fraction form
    17,877.12/24,670.84 = 9,919.68/x
  3. Step 3: Cross multiply
    17,877.12x = 24,670.84 × 9,919.68
  4. Step 4: Simplify right side
    17,877.12x = 244,726,838.13
  5. Step 5: Solve for x
    x = 244,726,838.13/17,877.12
  6. Step 6: Final answer
    x = 13,689.39

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Similar ratio
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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.