Home / 8,144.40-12,215.80-2,596.76

Finding the Fourth Proportional to 8,144.40, 12,215.80 and 2,596.76

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Solution

The fourth proportional to 8,144.40, 12,215.80 and 2,596.76 is: 3,894.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,144.40 : 12,215.80 = 2,596.76 : x
  2. Step 2: Convert to fraction form
    8,144.40/12,215.80 = 2,596.76/x
  3. Step 3: Cross multiply
    8,144.40x = 12,215.80 × 2,596.76
  4. Step 4: Simplify right side
    8,144.40x = 31,721,500.81
  5. Step 5: Solve for x
    x = 31,721,500.81/8,144.40
  6. Step 6: Final answer
    x = 3,894.88

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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.