Home / 8,418.86-12,630.10-2,575.28

Finding the Fourth Proportional to 8,418.86, 12,630.10 and 2,575.28

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Solution

The fourth proportional to 8,418.86, 12,630.10 and 2,575.28 is: 3,863.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.86 : 12,630.10 = 2,575.28 : x
  2. Step 2: Convert to fraction form
    8,418.86/12,630.10 = 2,575.28/x
  3. Step 3: Cross multiply
    8,418.86x = 12,630.10 × 2,575.28
  4. Step 4: Simplify right side
    8,418.86x = 32,526,043.93
  5. Step 5: Solve for x
    x = 32,526,043.93/8,418.86
  6. Step 6: Final answer
    x = 3,863.47

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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.