Home / 15,781.30-23,675.59-4,687.74

Finding the Fourth Proportional to 15,781.30, 23,675.59 and 4,687.74

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Solution

The fourth proportional to 15,781.30, 23,675.59 and 4,687.74 is: 7,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,781.30 : 23,675.59 = 4,687.74 : x
  2. Step 2: Convert to fraction form
    15,781.30/23,675.59 = 4,687.74/x
  3. Step 3: Cross multiply
    15,781.30x = 23,675.59 × 4,687.74
  4. Step 4: Simplify right side
    15,781.30x = 110,985,016.13
  5. Step 5: Solve for x
    x = 110,985,016.13/15,781.30
  6. Step 6: Final answer
    x = 7,032.69

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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.