Home / 8,649.13-12,975.52-2,805.29

Finding the Fourth Proportional to 8,649.13, 12,975.52 and 2,805.29

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Solution

The fourth proportional to 8,649.13, 12,975.52 and 2,805.29 is: 4,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,649.13 : 12,975.52 = 2,805.29 : x
  2. Step 2: Convert to fraction form
    8,649.13/12,975.52 = 2,805.29/x
  3. Step 3: Cross multiply
    8,649.13x = 12,975.52 × 2,805.29
  4. Step 4: Simplify right side
    8,649.13x = 36,400,024.61
  5. Step 5: Solve for x
    x = 36,400,024.61/8,649.13
  6. Step 6: Final answer
    x = 4,208.52

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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.