Home / 18,343.76-25,320.35-10,789.70

Finding the Fourth Proportional to 18,343.76, 25,320.35 and 10,789.70

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Solution

The fourth proportional to 18,343.76, 25,320.35 and 10,789.70 is: 14,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,343.76 : 25,320.35 = 10,789.70 : x
  2. Step 2: Convert to fraction form
    18,343.76/25,320.35 = 10,789.70/x
  3. Step 3: Cross multiply
    18,343.76x = 25,320.35 × 10,789.70
  4. Step 4: Simplify right side
    18,343.76x = 273,198,799.84
  5. Step 5: Solve for x
    x = 273,198,799.84/18,343.76
  6. Step 6: Final answer
    x = 14,893.29

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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.