Home / 18,764.40-25,891.47-10,806.15

Finding the Fourth Proportional to 18,764.40, 25,891.47 and 10,806.15

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Solution

The fourth proportional to 18,764.40, 25,891.47 and 10,806.15 is: 14,910.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.40 : 25,891.47 = 10,806.15 : x
  2. Step 2: Convert to fraction form
    18,764.40/25,891.47 = 10,806.15/x
  3. Step 3: Cross multiply
    18,764.40x = 25,891.47 × 10,806.15
  4. Step 4: Simplify right side
    18,764.40x = 279,787,108.54
  5. Step 5: Solve for x
    x = 279,787,108.54/18,764.40
  6. Step 6: Final answer
    x = 14,910.53

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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.