Home / 9,517.47-13,125.44-8,172.66

Finding the Fourth Proportional to 9,517.47, 13,125.44 and 8,172.66

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Solution

The fourth proportional to 9,517.47, 13,125.44 and 8,172.66 is: 11,270.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.47 : 13,125.44 = 8,172.66 : x
  2. Step 2: Convert to fraction form
    9,517.47/13,125.44 = 8,172.66/x
  3. Step 3: Cross multiply
    9,517.47x = 13,125.44 × 8,172.66
  4. Step 4: Simplify right side
    9,517.47x = 107,269,717.61
  5. Step 5: Solve for x
    x = 107,269,717.61/9,517.47
  6. Step 6: Final answer
    x = 11,270.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.