Home / 10,478.33-15,717.47-3,082.78

Finding the Fourth Proportional to 10,478.33, 15,717.47 and 3,082.78

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Solution

The fourth proportional to 10,478.33, 15,717.47 and 3,082.78 is: 4,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478.33 : 15,717.47 = 3,082.78 : x
  2. Step 2: Convert to fraction form
    10,478.33/15,717.47 = 3,082.78/x
  3. Step 3: Cross multiply
    10,478.33x = 15,717.47 × 3,082.78
  4. Step 4: Simplify right side
    10,478.33x = 48,453,426.66
  5. Step 5: Solve for x
    x = 48,453,426.66/10,478.33
  6. Step 6: Final answer
    x = 4,624.16

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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.