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Finding the Fourth Proportional to 17,122.30, 25,687.53 and 5,435.53

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Solution

The fourth proportional to 17,122.30, 25,687.53 and 5,435.53 is: 8,154.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,122.30 : 25,687.53 = 5,435.53 : x
  2. Step 2: Convert to fraction form
    17,122.30/25,687.53 = 5,435.53/x
  3. Step 3: Cross multiply
    17,122.30x = 25,687.53 × 5,435.53
  4. Step 4: Simplify right side
    17,122.30x = 139,625,275.72
  5. Step 5: Solve for x
    x = 139,625,275.72/17,122.30
  6. Step 6: Final answer
    x = 8,154.59

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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.