Home / 10,618.68-15,921.82-4,371.65

Finding the Fourth Proportional to 10,618.68, 15,921.82 and 4,371.65

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Solution

The fourth proportional to 10,618.68, 15,921.82 and 4,371.65 is: 6,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,618.68 : 15,921.82 = 4,371.65 : x
  2. Step 2: Convert to fraction form
    10,618.68/15,921.82 = 4,371.65/x
  3. Step 3: Cross multiply
    10,618.68x = 15,921.82 × 4,371.65
  4. Step 4: Simplify right side
    10,618.68x = 69,604,540.59
  5. Step 5: Solve for x
    x = 69,604,540.59/10,618.68
  6. Step 6: Final answer
    x = 6,554.91

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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.