Home / 8,110.12-12,166.80-2,916.40

Finding the Fourth Proportional to 8,110.12, 12,166.80 and 2,916.40

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Solution

The fourth proportional to 8,110.12, 12,166.80 and 2,916.40 is: 4,375.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.12 : 12,166.80 = 2,916.40 : x
  2. Step 2: Convert to fraction form
    8,110.12/12,166.80 = 2,916.40/x
  3. Step 3: Cross multiply
    8,110.12x = 12,166.80 × 2,916.40
  4. Step 4: Simplify right side
    8,110.12x = 35,483,255.52
  5. Step 5: Solve for x
    x = 35,483,255.52/8,110.12
  6. Step 6: Final answer
    x = 4,375.18

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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.