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Finding the Fourth Proportional to 13,070.52, 18,045.78 and 10,686.24

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Solution

The fourth proportional to 13,070.52, 18,045.78 and 10,686.24 is: 14,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,070.52 : 18,045.78 = 10,686.24 : x
  2. Step 2: Convert to fraction form
    13,070.52/18,045.78 = 10,686.24/x
  3. Step 3: Cross multiply
    13,070.52x = 18,045.78 × 10,686.24
  4. Step 4: Simplify right side
    13,070.52x = 192,841,536.07
  5. Step 5: Solve for x
    x = 192,841,536.07/13,070.52
  6. Step 6: Final answer
    x = 14,753.93

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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.