Home / 8,569.17-12,851.70-2,645.22

Finding the Fourth Proportional to 8,569.17, 12,851.70 and 2,645.22

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Solution

The fourth proportional to 8,569.17, 12,851.70 and 2,645.22 is: 3,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,569.17 : 12,851.70 = 2,645.22 : x
  2. Step 2: Convert to fraction form
    8,569.17/12,851.70 = 2,645.22/x
  3. Step 3: Cross multiply
    8,569.17x = 12,851.70 × 2,645.22
  4. Step 4: Simplify right side
    8,569.17x = 33,995,573.87
  5. Step 5: Solve for x
    x = 33,995,573.87/8,569.17
  6. Step 6: Final answer
    x = 3,967.20

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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.