Home / 9,129.47-13,695.59-2,887.41

Finding the Fourth Proportional to 9,129.47, 13,695.59 and 2,887.41

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Solution

The fourth proportional to 9,129.47, 13,695.59 and 2,887.41 is: 4,331.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.47 : 13,695.59 = 2,887.41 : x
  2. Step 2: Convert to fraction form
    9,129.47/13,695.59 = 2,887.41/x
  3. Step 3: Cross multiply
    9,129.47x = 13,695.59 × 2,887.41
  4. Step 4: Simplify right side
    9,129.47x = 39,544,700.61
  5. Step 5: Solve for x
    x = 39,544,700.61/9,129.47
  6. Step 6: Final answer
    x = 4,331.55

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Why These Related Problems?

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