Home / 15,733.42-21,712.18-8,660.09

Finding the Fourth Proportional to 15,733.42, 21,712.18 and 8,660.09

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Solution

The fourth proportional to 15,733.42, 21,712.18 and 8,660.09 is: 11,950.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.42 : 21,712.18 = 8,660.09 : x
  2. Step 2: Convert to fraction form
    15,733.42/21,712.18 = 8,660.09/x
  3. Step 3: Cross multiply
    15,733.42x = 21,712.18 × 8,660.09
  4. Step 4: Simplify right side
    15,733.42x = 188,029,432.90
  5. Step 5: Solve for x
    x = 188,029,432.90/15,733.42
  6. Step 6: Final answer
    x = 11,950.96

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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.