Home / 13,377.35-18,454.61-8,663.15

Finding the Fourth Proportional to 13,377.35, 18,454.61 and 8,663.15

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Solution

The fourth proportional to 13,377.35, 18,454.61 and 8,663.15 is: 11,951.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,377.35 : 18,454.61 = 8,663.15 : x
  2. Step 2: Convert to fraction form
    13,377.35/18,454.61 = 8,663.15/x
  3. Step 3: Cross multiply
    13,377.35x = 18,454.61 × 8,663.15
  4. Step 4: Simplify right side
    13,377.35x = 159,874,984.01
  5. Step 5: Solve for x
    x = 159,874,984.01/13,377.35
  6. Step 6: Final answer
    x = 11,951.17

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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.