Home / 8,414.28-11,611.80-5,272.32

Finding the Fourth Proportional to 8,414.28, 11,611.80 and 5,272.32

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Solution

The fourth proportional to 8,414.28, 11,611.80 and 5,272.32 is: 7,275.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,414.28 : 11,611.80 = 5,272.32 : x
  2. Step 2: Convert to fraction form
    8,414.28/11,611.80 = 5,272.32/x
  3. Step 3: Cross multiply
    8,414.28x = 11,611.80 × 5,272.32
  4. Step 4: Simplify right side
    8,414.28x = 61,221,125.38
  5. Step 5: Solve for x
    x = 61,221,125.38/8,414.28
  6. Step 6: Final answer
    x = 7,275.86

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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.