Home / 18,711.27-25,820.46-10,211.70

Finding the Fourth Proportional to 18,711.27, 25,820.46 and 10,211.70

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Solution

The fourth proportional to 18,711.27, 25,820.46 and 10,211.70 is: 14,091.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,711.27 : 25,820.46 = 10,211.70 : x
  2. Step 2: Convert to fraction form
    18,711.27/25,820.46 = 10,211.70/x
  3. Step 3: Cross multiply
    18,711.27x = 25,820.46 × 10,211.70
  4. Step 4: Simplify right side
    18,711.27x = 263,670,655.99
  5. Step 5: Solve for x
    x = 263,670,655.99/18,711.27
  6. Step 6: Final answer
    x = 14,091.55

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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.