Home / 13,371.80-18,456.17-8,895.74

Finding the Fourth Proportional to 13,371.80, 18,456.17 and 8,895.74

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Solution

The fourth proportional to 13,371.80, 18,456.17 and 8,895.74 is: 12,278.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,371.80 : 18,456.17 = 8,895.74 : x
  2. Step 2: Convert to fraction form
    13,371.80/18,456.17 = 8,895.74/x
  3. Step 3: Cross multiply
    13,371.80x = 18,456.17 × 8,895.74
  4. Step 4: Simplify right side
    13,371.80x = 164,181,152.96
  5. Step 5: Solve for x
    x = 164,181,152.96/13,371.80
  6. Step 6: Final answer
    x = 12,278.17

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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.