Home / 8,580.06-12,871.53-4,197.78

Finding the Fourth Proportional to 8,580.06, 12,871.53 and 4,197.78

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Solution

The fourth proportional to 8,580.06, 12,871.53 and 4,197.78 is: 6,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.06 : 12,871.53 = 4,197.78 : x
  2. Step 2: Convert to fraction form
    8,580.06/12,871.53 = 4,197.78/x
  3. Step 3: Cross multiply
    8,580.06x = 12,871.53 × 4,197.78
  4. Step 4: Simplify right side
    8,580.06x = 54,031,851.20
  5. Step 5: Solve for x
    x = 54,031,851.20/8,580.06
  6. Step 6: Final answer
    x = 6,297.37

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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.