Home / 8,519.51-12,775.21-2,972.18

Finding the Fourth Proportional to 8,519.51, 12,775.21 and 2,972.18

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Solution

The fourth proportional to 8,519.51, 12,775.21 and 2,972.18 is: 4,456.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.51 : 12,775.21 = 2,972.18 : x
  2. Step 2: Convert to fraction form
    8,519.51/12,775.21 = 2,972.18/x
  3. Step 3: Cross multiply
    8,519.51x = 12,775.21 × 2,972.18
  4. Step 4: Simplify right side
    8,519.51x = 37,970,223.66
  5. Step 5: Solve for x
    x = 37,970,223.66/8,519.51
  6. Step 6: Final answer
    x = 4,456.86

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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.