Home / 15,258.48-22,879.80-7,861.20

Finding the Fourth Proportional to 15,258.48, 22,879.80 and 7,861.20

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Solution

The fourth proportional to 15,258.48, 22,879.80 and 7,861.20 is: 11,787.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,258.48 : 22,879.80 = 7,861.20 : x
  2. Step 2: Convert to fraction form
    15,258.48/22,879.80 = 7,861.20/x
  3. Step 3: Cross multiply
    15,258.48x = 22,879.80 × 7,861.20
  4. Step 4: Simplify right side
    15,258.48x = 179,862,683.76
  5. Step 5: Solve for x
    x = 179,862,683.76/15,258.48
  6. Step 6: Final answer
    x = 11,787.72

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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.