Home / 8,531.24-12,788.06-3,603.88

Finding the Fourth Proportional to 8,531.24, 12,788.06 and 3,603.88

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Solution

The fourth proportional to 8,531.24, 12,788.06 and 3,603.88 is: 5,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.24 : 12,788.06 = 3,603.88 : x
  2. Step 2: Convert to fraction form
    8,531.24/12,788.06 = 3,603.88/x
  3. Step 3: Cross multiply
    8,531.24x = 12,788.06 × 3,603.88
  4. Step 4: Simplify right side
    8,531.24x = 46,086,633.67
  5. Step 5: Solve for x
    x = 46,086,633.67/8,531.24
  6. Step 6: Final answer
    x = 5,402.10

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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.