Home / 8,521.01-12,781.41-2,974.25

Finding the Fourth Proportional to 8,521.01, 12,781.41 and 2,974.25

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Solution

The fourth proportional to 8,521.01, 12,781.41 and 2,974.25 is: 4,461.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.01 : 12,781.41 = 2,974.25 : x
  2. Step 2: Convert to fraction form
    8,521.01/12,781.41 = 2,974.25/x
  3. Step 3: Cross multiply
    8,521.01x = 12,781.41 × 2,974.25
  4. Step 4: Simplify right side
    8,521.01x = 38,015,108.69
  5. Step 5: Solve for x
    x = 38,015,108.69/8,521.01
  6. Step 6: Final answer
    x = 4,461.34

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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.