Home / 8,360.31-12,540.98-2,813.19

Finding the Fourth Proportional to 8,360.31, 12,540.98 and 2,813.19

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Solution

The fourth proportional to 8,360.31, 12,540.98 and 2,813.19 is: 4,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,360.31 : 12,540.98 = 2,813.19 : x
  2. Step 2: Convert to fraction form
    8,360.31/12,540.98 = 2,813.19/x
  3. Step 3: Cross multiply
    8,360.31x = 12,540.98 × 2,813.19
  4. Step 4: Simplify right side
    8,360.31x = 35,280,082.76
  5. Step 5: Solve for x
    x = 35,280,082.76/8,360.31
  6. Step 6: Final answer
    x = 4,219.95

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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.