Home / 8,236.47-12,356.76-2,690.13

Finding the Fourth Proportional to 8,236.47, 12,356.76 and 2,690.13

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Solution

The fourth proportional to 8,236.47, 12,356.76 and 2,690.13 is: 4,035.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,236.47 : 12,356.76 = 2,690.13 : x
  2. Step 2: Convert to fraction form
    8,236.47/12,356.76 = 2,690.13/x
  3. Step 3: Cross multiply
    8,236.47x = 12,356.76 × 2,690.13
  4. Step 4: Simplify right side
    8,236.47x = 33,241,290.78
  5. Step 5: Solve for x
    x = 33,241,290.78/8,236.47
  6. Step 6: Final answer
    x = 4,035.87

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1.5x scale

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.