Home / 15,056.19-20,765.83-10,279.97

Finding the Fourth Proportional to 15,056.19, 20,765.83 and 10,279.97

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Solution

The fourth proportional to 15,056.19, 20,765.83 and 10,279.97 is: 14,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,056.19 : 20,765.83 = 10,279.97 : x
  2. Step 2: Convert to fraction form
    15,056.19/20,765.83 = 10,279.97/x
  3. Step 3: Cross multiply
    15,056.19x = 20,765.83 × 10,279.97
  4. Step 4: Simplify right side
    15,056.19x = 213,472,109.43
  5. Step 5: Solve for x
    x = 213,472,109.43/15,056.19
  6. Step 6: Final answer
    x = 14,178.36

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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.