Home / 8,871.29-13,307.60-5,173.88

Finding the Fourth Proportional to 8,871.29, 13,307.60 and 5,173.88

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Solution

The fourth proportional to 8,871.29, 13,307.60 and 5,173.88 is: 7,761.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.29 : 13,307.60 = 5,173.88 : x
  2. Step 2: Convert to fraction form
    8,871.29/13,307.60 = 5,173.88/x
  3. Step 3: Cross multiply
    8,871.29x = 13,307.60 × 5,173.88
  4. Step 4: Simplify right side
    8,871.29x = 68,851,971.69
  5. Step 5: Solve for x
    x = 68,851,971.69/8,871.29
  6. Step 6: Final answer
    x = 7,761.22

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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.