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Finding the Fourth Proportional to 17,955.90, 24,779.12 and 9,998.82

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Solution

The fourth proportional to 17,955.90, 24,779.12 and 9,998.82 is: 13,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,955.90 : 24,779.12 = 9,998.82 : x
  2. Step 2: Convert to fraction form
    17,955.90/24,779.12 = 9,998.82/x
  3. Step 3: Cross multiply
    17,955.90x = 24,779.12 × 9,998.82
  4. Step 4: Simplify right side
    17,955.90x = 247,761,910.64
  5. Step 5: Solve for x
    x = 247,761,910.64/17,955.90
  6. Step 6: Final answer
    x = 13,798.36

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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.