Home / 8,013.52-12,020.40-2,170.72

Finding the Fourth Proportional to 8,013.52, 12,020.40 and 2,170.72

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Solution

The fourth proportional to 8,013.52, 12,020.40 and 2,170.72 is: 3,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.52 : 12,020.40 = 2,170.72 : x
  2. Step 2: Convert to fraction form
    8,013.52/12,020.40 = 2,170.72/x
  3. Step 3: Cross multiply
    8,013.52x = 12,020.40 × 2,170.72
  4. Step 4: Simplify right side
    8,013.52x = 26,092,922.69
  5. Step 5: Solve for x
    x = 26,092,922.69/8,013.52
  6. Step 6: Final answer
    x = 3,256.11

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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.