Home / 15,871.72-23,829.50-8,085.96

Finding the Fourth Proportional to 15,871.72, 23,829.50 and 8,085.96

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Solution

The fourth proportional to 15,871.72, 23,829.50 and 8,085.96 is: 12,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.72 : 23,829.50 = 8,085.96 : x
  2. Step 2: Convert to fraction form
    15,871.72/23,829.50 = 8,085.96/x
  3. Step 3: Cross multiply
    15,871.72x = 23,829.50 × 8,085.96
  4. Step 4: Simplify right side
    15,871.72x = 192,684,383.82
  5. Step 5: Solve for x
    x = 192,684,383.82/15,871.72
  6. Step 6: Final answer
    x = 12,140.11

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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.