Home / 15,502.06-21,392.39-8,788.31

Finding the Fourth Proportional to 15,502.06, 21,392.39 and 8,788.31

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Solution

The fourth proportional to 15,502.06, 21,392.39 and 8,788.31 is: 12,127.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,502.06 : 21,392.39 = 8,788.31 : x
  2. Step 2: Convert to fraction form
    15,502.06/21,392.39 = 8,788.31/x
  3. Step 3: Cross multiply
    15,502.06x = 21,392.39 × 8,788.31
  4. Step 4: Simplify right side
    15,502.06x = 188,002,869.97
  5. Step 5: Solve for x
    x = 188,002,869.97/15,502.06
  6. Step 6: Final answer
    x = 12,127.61

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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.