Home / 8,077.19-12,112.67-3,146.18

Finding the Fourth Proportional to 8,077.19, 12,112.67 and 3,146.18

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Solution

The fourth proportional to 8,077.19, 12,112.67 and 3,146.18 is: 4,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,077.19 : 12,112.67 = 3,146.18 : x
  2. Step 2: Convert to fraction form
    8,077.19/12,112.67 = 3,146.18/x
  3. Step 3: Cross multiply
    8,077.19x = 12,112.67 × 3,146.18
  4. Step 4: Simplify right side
    8,077.19x = 38,108,587.40
  5. Step 5: Solve for x
    x = 38,108,587.40/8,077.19
  6. Step 6: Final answer
    x = 4,718.05

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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.