Home / 8,827.90-13,237.57-5,131.20

Finding the Fourth Proportional to 8,827.90, 13,237.57 and 5,131.20

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Solution

The fourth proportional to 8,827.90, 13,237.57 and 5,131.20 is: 7,694.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.90 : 13,237.57 = 5,131.20 : x
  2. Step 2: Convert to fraction form
    8,827.90/13,237.57 = 5,131.20/x
  3. Step 3: Cross multiply
    8,827.90x = 13,237.57 × 5,131.20
  4. Step 4: Simplify right side
    8,827.90x = 67,924,619.18
  5. Step 5: Solve for x
    x = 67,924,619.18/8,827.90
  6. Step 6: Final answer
    x = 7,694.31

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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.