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Finding the Fourth Proportional to 15,424.72, 23,137.08 and 7,625.68

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Solution

The fourth proportional to 15,424.72, 23,137.08 and 7,625.68 is: 11,438.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,424.72 : 23,137.08 = 7,625.68 : x
  2. Step 2: Convert to fraction form
    15,424.72/23,137.08 = 7,625.68/x
  3. Step 3: Cross multiply
    15,424.72x = 23,137.08 × 7,625.68
  4. Step 4: Simplify right side
    15,424.72x = 176,435,968.21
  5. Step 5: Solve for x
    x = 176,435,968.21/15,424.72
  6. Step 6: Final answer
    x = 11,438.52

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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.