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Finding the Fourth Proportional to 17,111.90, 25,672.65 and 8,347.10

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Solution

The fourth proportional to 17,111.90, 25,672.65 and 8,347.10 is: 12,522.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,111.90 : 25,672.65 = 8,347.10 : x
  2. Step 2: Convert to fraction form
    17,111.90/25,672.65 = 8,347.10/x
  3. Step 3: Cross multiply
    17,111.90x = 25,672.65 × 8,347.10
  4. Step 4: Simplify right side
    17,111.90x = 214,292,176.82
  5. Step 5: Solve for x
    x = 214,292,176.82/17,111.90
  6. Step 6: Final answer
    x = 12,522.99

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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.