Home / 8,315.18-12,468.60-2,766.57

Finding the Fourth Proportional to 8,315.18, 12,468.60 and 2,766.57

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Solution

The fourth proportional to 8,315.18, 12,468.60 and 2,766.57 is: 4,148.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.18 : 12,468.60 = 2,766.57 : x
  2. Step 2: Convert to fraction form
    8,315.18/12,468.60 = 2,766.57/x
  3. Step 3: Cross multiply
    8,315.18x = 12,468.60 × 2,766.57
  4. Step 4: Simplify right side
    8,315.18x = 34,495,254.70
  5. Step 5: Solve for x
    x = 34,495,254.70/8,315.18
  6. Step 6: Final answer
    x = 4,148.47

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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.