Home / 11,476.38-15,853.02-8,989.95

Finding the Fourth Proportional to 11,476.38, 15,853.02 and 8,989.95

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Solution

The fourth proportional to 11,476.38, 15,853.02 and 8,989.95 is: 12,418.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,476.38 : 15,853.02 = 8,989.95 : x
  2. Step 2: Convert to fraction form
    11,476.38/15,853.02 = 8,989.95/x
  3. Step 3: Cross multiply
    11,476.38x = 15,853.02 × 8,989.95
  4. Step 4: Simplify right side
    11,476.38x = 142,517,857.15
  5. Step 5: Solve for x
    x = 142,517,857.15/11,476.38
  6. Step 6: Final answer
    x = 12,418.36

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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.