Home / 8,135.51-12,195.16-5,670.95

Finding the Fourth Proportional to 8,135.51, 12,195.16 and 5,670.95

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Solution

The fourth proportional to 8,135.51, 12,195.16 and 5,670.95 is: 8,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.51 : 12,195.16 = 5,670.95 : x
  2. Step 2: Convert to fraction form
    8,135.51/12,195.16 = 5,670.95/x
  3. Step 3: Cross multiply
    8,135.51x = 12,195.16 × 5,670.95
  4. Step 4: Simplify right side
    8,135.51x = 69,158,142.60
  5. Step 5: Solve for x
    x = 69,158,142.60/8,135.51
  6. Step 6: Final answer
    x = 8,500.78

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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.