Home / 8,077.75-12,114.23-3,146.20

Finding the Fourth Proportional to 8,077.75, 12,114.23 and 3,146.20

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Solution

The fourth proportional to 8,077.75, 12,114.23 and 3,146.20 is: 4,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.75 : 12,114.23 = 3,146.20 : x
  2. Step 2: Convert to fraction form
    8,077.75/12,114.23 = 3,146.20/x
  3. Step 3: Cross multiply
    8,077.75x = 12,114.23 × 3,146.20
  4. Step 4: Simplify right side
    8,077.75x = 38,113,744.41
  5. Step 5: Solve for x
    x = 38,113,744.41/8,077.75
  6. Step 6: Final answer
    x = 4,718.36

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Double scale
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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.