Home / 13,142.69-18,134.20-7,552.61

Finding the Fourth Proportional to 13,142.69, 18,134.20 and 7,552.61

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Solution

The fourth proportional to 13,142.69, 18,134.20 and 7,552.61 is: 10,421.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,142.69 : 18,134.20 = 7,552.61 : x
  2. Step 2: Convert to fraction form
    13,142.69/18,134.20 = 7,552.61/x
  3. Step 3: Cross multiply
    13,142.69x = 18,134.20 × 7,552.61
  4. Step 4: Simplify right side
    13,142.69x = 136,960,540.26
  5. Step 5: Solve for x
    x = 136,960,540.26/13,142.69
  6. Step 6: Final answer
    x = 10,421.04

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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.