Home / 16,116.41-22,240.29-8,945.90

Finding the Fourth Proportional to 16,116.41, 22,240.29 and 8,945.90

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Solution

The fourth proportional to 16,116.41, 22,240.29 and 8,945.90 is: 12,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,116.41 : 22,240.29 = 8,945.90 : x
  2. Step 2: Convert to fraction form
    16,116.41/22,240.29 = 8,945.90/x
  3. Step 3: Cross multiply
    16,116.41x = 22,240.29 × 8,945.90
  4. Step 4: Simplify right side
    16,116.41x = 198,959,432.36
  5. Step 5: Solve for x
    x = 198,959,432.36/16,116.41
  6. Step 6: Final answer
    x = 12,345.15

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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.