Home / 10,955.38-15,116.85-6,238.90

Finding the Fourth Proportional to 10,955.38, 15,116.85 and 6,238.90

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Solution

The fourth proportional to 10,955.38, 15,116.85 and 6,238.90 is: 8,608.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,955.38 : 15,116.85 = 6,238.90 : x
  2. Step 2: Convert to fraction form
    10,955.38/15,116.85 = 6,238.90/x
  3. Step 3: Cross multiply
    10,955.38x = 15,116.85 × 6,238.90
  4. Step 4: Simplify right side
    10,955.38x = 94,312,515.47
  5. Step 5: Solve for x
    x = 94,312,515.47/10,955.38
  6. Step 6: Final answer
    x = 8,608.79

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Half scale
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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.