Home / 15,781.20-23,675.51-4,687.98

Finding the Fourth Proportional to 15,781.20, 23,675.51 and 4,687.98

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Solution

The fourth proportional to 15,781.20, 23,675.51 and 4,687.98 is: 7,033.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.20 : 23,675.51 = 4,687.98 : x
  2. Step 2: Convert to fraction form
    15,781.20/23,675.51 = 4,687.98/x
  3. Step 3: Cross multiply
    15,781.20x = 23,675.51 × 4,687.98
  4. Step 4: Simplify right side
    15,781.20x = 110,990,293.93
  5. Step 5: Solve for x
    x = 110,990,293.93/15,781.20
  6. Step 6: Final answer
    x = 7,033.07

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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.