Home / 8,015.38-11,061.28-4,478.74

Finding the Fourth Proportional to 8,015.38, 11,061.28 and 4,478.74

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Solution

The fourth proportional to 8,015.38, 11,061.28 and 4,478.74 is: 6,180.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.38 : 11,061.28 = 4,478.74 : x
  2. Step 2: Convert to fraction form
    8,015.38/11,061.28 = 4,478.74/x
  3. Step 3: Cross multiply
    8,015.38x = 11,061.28 × 4,478.74
  4. Step 4: Simplify right side
    8,015.38x = 49,540,597.19
  5. Step 5: Solve for x
    x = 49,540,597.19/8,015.38
  6. Step 6: Final answer
    x = 6,180.69

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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.