Home / 8,531.12-12,800.52-4,629.68

Finding the Fourth Proportional to 8,531.12, 12,800.52 and 4,629.68

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Solution

The fourth proportional to 8,531.12, 12,800.52 and 4,629.68 is: 6,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,531.12 : 12,800.52 = 4,629.68 : x
  2. Step 2: Convert to fraction form
    8,531.12/12,800.52 = 4,629.68/x
  3. Step 3: Cross multiply
    8,531.12x = 12,800.52 × 4,629.68
  4. Step 4: Simplify right side
    8,531.12x = 59,262,311.43
  5. Step 5: Solve for x
    x = 59,262,311.43/8,531.12
  6. Step 6: Final answer
    x = 6,946.60

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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.