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Finding the Fourth Proportional to 13,092.57, 18,068.13 and 7,124.63

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Solution

The fourth proportional to 13,092.57, 18,068.13 and 7,124.63 is: 9,832.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,092.57 : 18,068.13 = 7,124.63 : x
  2. Step 2: Convert to fraction form
    13,092.57/18,068.13 = 7,124.63/x
  3. Step 3: Cross multiply
    13,092.57x = 18,068.13 × 7,124.63
  4. Step 4: Simplify right side
    13,092.57x = 128,728,650.70
  5. Step 5: Solve for x
    x = 128,728,650.70/13,092.57
  6. Step 6: Final answer
    x = 9,832.19

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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.