Home / 8,701.98-13,052.90-2,128.11

Finding the Fourth Proportional to 8,701.98, 13,052.90 and 2,128.11

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Solution

The fourth proportional to 8,701.98, 13,052.90 and 2,128.11 is: 3,192.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.98 : 13,052.90 = 2,128.11 : x
  2. Step 2: Convert to fraction form
    8,701.98/13,052.90 = 2,128.11/x
  3. Step 3: Cross multiply
    8,701.98x = 13,052.90 × 2,128.11
  4. Step 4: Simplify right side
    8,701.98x = 27,777,996.38
  5. Step 5: Solve for x
    x = 27,777,996.38/8,701.98
  6. Step 6: Final answer
    x = 3,192.15

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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.