Home / 8,701.72-13,052.58-2,127.90

Finding the Fourth Proportional to 8,701.72, 13,052.58 and 2,127.90

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Solution

The fourth proportional to 8,701.72, 13,052.58 and 2,127.90 is: 3,191.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.72 : 13,052.58 = 2,127.90 : x
  2. Step 2: Convert to fraction form
    8,701.72/13,052.58 = 2,127.90/x
  3. Step 3: Cross multiply
    8,701.72x = 13,052.58 × 2,127.90
  4. Step 4: Simplify right side
    8,701.72x = 27,774,584.98
  5. Step 5: Solve for x
    x = 27,774,584.98/8,701.72
  6. Step 6: Final answer
    x = 3,191.85

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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.