Home / 15,451.50-21,323.07-8,377.92

Finding the Fourth Proportional to 15,451.50, 21,323.07 and 8,377.92

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Solution

The fourth proportional to 15,451.50, 21,323.07 and 8,377.92 is: 11,561.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.50 : 21,323.07 = 8,377.92 : x
  2. Step 2: Convert to fraction form
    15,451.50/21,323.07 = 8,377.92/x
  3. Step 3: Cross multiply
    15,451.50x = 21,323.07 × 8,377.92
  4. Step 4: Simplify right side
    15,451.50x = 178,642,974.61
  5. Step 5: Solve for x
    x = 178,642,974.61/15,451.50
  6. Step 6: Final answer
    x = 11,561.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.