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Finding the Fourth Proportional to 17,407.88, 26,129.10 and 13,554.44

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Solution

The fourth proportional to 17,407.88, 26,129.10 and 13,554.44 is: 20,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,407.88 : 26,129.10 = 13,554.44 : x
  2. Step 2: Convert to fraction form
    17,407.88/26,129.10 = 13,554.44/x
  3. Step 3: Cross multiply
    17,407.88x = 26,129.10 × 13,554.44
  4. Step 4: Simplify right side
    17,407.88x = 354,165,318.20
  5. Step 5: Solve for x
    x = 354,165,318.20/17,407.88
  6. Step 6: Final answer
    x = 20,345.11

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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.