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Finding the Fourth Proportional to 12,529.72, 17,289.84 and 7,492.92

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Solution

The fourth proportional to 12,529.72, 17,289.84 and 7,492.92 is: 10,339.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.72 : 17,289.84 = 7,492.92 : x
  2. Step 2: Convert to fraction form
    12,529.72/17,289.84 = 7,492.92/x
  3. Step 3: Cross multiply
    12,529.72x = 17,289.84 × 7,492.92
  4. Step 4: Simplify right side
    12,529.72x = 129,551,387.93
  5. Step 5: Solve for x
    x = 129,551,387.93/12,529.72
  6. Step 6: Final answer
    x = 10,339.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.