Home / 15,722.32-23,586.54-5,191.90

Finding the Fourth Proportional to 15,722.32, 23,586.54 and 5,191.90

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Solution

The fourth proportional to 15,722.32, 23,586.54 and 5,191.90 is: 7,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,722.32 : 23,586.54 = 5,191.90 : x
  2. Step 2: Convert to fraction form
    15,722.32/23,586.54 = 5,191.90/x
  3. Step 3: Cross multiply
    15,722.32x = 23,586.54 × 5,191.90
  4. Step 4: Simplify right side
    15,722.32x = 122,458,957.03
  5. Step 5: Solve for x
    x = 122,458,957.03/15,722.32
  6. Step 6: Final answer
    x = 7,788.86

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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.