Home / 15,733.21-21,712.26-8,660.07

Finding the Fourth Proportional to 15,733.21, 21,712.26 and 8,660.07

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Solution

The fourth proportional to 15,733.21, 21,712.26 and 8,660.07 is: 11,951.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.21 : 21,712.26 = 8,660.07 : x
  2. Step 2: Convert to fraction form
    15,733.21/21,712.26 = 8,660.07/x
  3. Step 3: Cross multiply
    15,733.21x = 21,712.26 × 8,660.07
  4. Step 4: Simplify right side
    15,733.21x = 188,029,691.46
  5. Step 5: Solve for x
    x = 188,029,691.46/15,733.21
  6. Step 6: Final answer
    x = 11,951.13

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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.