Home / 8,258.38-12,376.60-7,157.58

Finding the Fourth Proportional to 8,258.38, 12,376.60 and 7,157.58

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Solution

The fourth proportional to 8,258.38, 12,376.60 and 7,157.58 is: 10,726.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,258.38 : 12,376.60 = 7,157.58 : x
  2. Step 2: Convert to fraction form
    8,258.38/12,376.60 = 7,157.58/x
  3. Step 3: Cross multiply
    8,258.38x = 12,376.60 × 7,157.58
  4. Step 4: Simplify right side
    8,258.38x = 88,586,504.63
  5. Step 5: Solve for x
    x = 88,586,504.63/8,258.38
  6. Step 6: Final answer
    x = 10,726.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.