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Finding the Fourth Proportional to 25,217.93, 37,826.90 and 7,687.76

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Solution

The fourth proportional to 25,217.93, 37,826.90 and 7,687.76 is: 11,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,217.93 : 37,826.90 = 7,687.76 : x
  2. Step 2: Convert to fraction form
    25,217.93/37,826.90 = 7,687.76/x
  3. Step 3: Cross multiply
    25,217.93x = 37,826.90 × 7,687.76
  4. Step 4: Simplify right side
    25,217.93x = 290,804,142.78
  5. Step 5: Solve for x
    x = 290,804,142.78/25,217.93
  6. Step 6: Final answer
    x = 11,531.64

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Similar ratio
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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.