Home / 10,480.05-15,726.15-5,286.33

Finding the Fourth Proportional to 10,480.05, 15,726.15 and 5,286.33

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Solution

The fourth proportional to 10,480.05, 15,726.15 and 5,286.33 is: 7,932.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.05 : 15,726.15 = 5,286.33 : x
  2. Step 2: Convert to fraction form
    10,480.05/15,726.15 = 5,286.33/x
  3. Step 3: Cross multiply
    10,480.05x = 15,726.15 × 5,286.33
  4. Step 4: Simplify right side
    10,480.05x = 83,133,618.53
  5. Step 5: Solve for x
    x = 83,133,618.53/10,480.05
  6. Step 6: Final answer
    x = 7,932.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.