Home / 8,575.53-12,851.70-3,889.72

Finding the Fourth Proportional to 8,575.53, 12,851.70 and 3,889.72

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Solution

The fourth proportional to 8,575.53, 12,851.70 and 3,889.72 is: 5,829.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,575.53 : 12,851.70 = 3,889.72 : x
  2. Step 2: Convert to fraction form
    8,575.53/12,851.70 = 3,889.72/x
  3. Step 3: Cross multiply
    8,575.53x = 12,851.70 × 3,889.72
  4. Step 4: Simplify right side
    8,575.53x = 49,989,514.52
  5. Step 5: Solve for x
    x = 49,989,514.52/8,575.53
  6. Step 6: Final answer
    x = 5,829.32

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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.