Home / 10,531.52-15,786.88-3,953.12

Finding the Fourth Proportional to 10,531.52, 15,786.88 and 3,953.12

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Solution

The fourth proportional to 10,531.52, 15,786.88 and 3,953.12 is: 5,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,531.52 : 15,786.88 = 3,953.12 : x
  2. Step 2: Convert to fraction form
    10,531.52/15,786.88 = 3,953.12/x
  3. Step 3: Cross multiply
    10,531.52x = 15,786.88 × 3,953.12
  4. Step 4: Simplify right side
    10,531.52x = 62,407,431.07
  5. Step 5: Solve for x
    x = 62,407,431.07/10,531.52
  6. Step 6: Final answer
    x = 5,925.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.