Home / 8,071.31-11,138.58-4,534.75

Finding the Fourth Proportional to 8,071.31, 11,138.58 and 4,534.75

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Solution

The fourth proportional to 8,071.31, 11,138.58 and 4,534.75 is: 6,258.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,071.31 : 11,138.58 = 4,534.75 : x
  2. Step 2: Convert to fraction form
    8,071.31/11,138.58 = 4,534.75/x
  3. Step 3: Cross multiply
    8,071.31x = 11,138.58 × 4,534.75
  4. Step 4: Simplify right side
    8,071.31x = 50,510,689.58
  5. Step 5: Solve for x
    x = 50,510,689.58/8,071.31
  6. Step 6: Final answer
    x = 6,258.05

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Half scale
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Double 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.