Home / 15,194.49-20,939.39-10,938.04

Finding the Fourth Proportional to 15,194.49, 20,939.39 and 10,938.04

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Solution

The fourth proportional to 15,194.49, 20,939.39 and 10,938.04 is: 15,073.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.49 : 20,939.39 = 10,938.04 : x
  2. Step 2: Convert to fraction form
    15,194.49/20,939.39 = 10,938.04/x
  3. Step 3: Cross multiply
    15,194.49x = 20,939.39 × 10,938.04
  4. Step 4: Simplify right side
    15,194.49x = 229,035,788.61
  5. Step 5: Solve for x
    x = 229,035,788.61/15,194.49
  6. Step 6: Final answer
    x = 15,073.61

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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.