Home / 8,079.32-12,125.06-3,146.22

Finding the Fourth Proportional to 8,079.32, 12,125.06 and 3,146.22

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Solution

The fourth proportional to 8,079.32, 12,125.06 and 3,146.22 is: 4,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.32 : 12,125.06 = 3,146.22 : x
  2. Step 2: Convert to fraction form
    8,079.32/12,125.06 = 3,146.22/x
  3. Step 3: Cross multiply
    8,079.32x = 12,125.06 × 3,146.22
  4. Step 4: Simplify right side
    8,079.32x = 38,148,106.27
  5. Step 5: Solve for x
    x = 38,148,106.27/8,079.32
  6. Step 6: Final answer
    x = 4,721.70

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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.