Home / 10,282.88-15,424.32-2,491.68

Finding the Fourth Proportional to 10,282.88, 15,424.32 and 2,491.68

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Solution

The fourth proportional to 10,282.88, 15,424.32 and 2,491.68 is: 3,737.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.88 : 15,424.32 = 2,491.68 : x
  2. Step 2: Convert to fraction form
    10,282.88/15,424.32 = 2,491.68/x
  3. Step 3: Cross multiply
    10,282.88x = 15,424.32 × 2,491.68
  4. Step 4: Simplify right side
    10,282.88x = 38,432,469.66
  5. Step 5: Solve for x
    x = 38,432,469.66/10,282.88
  6. Step 6: Final answer
    x = 3,737.52

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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.