Home / 10,155.67-15,229.45-3,912.19

Finding the Fourth Proportional to 10,155.67, 15,229.45 and 3,912.19

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Solution

The fourth proportional to 10,155.67, 15,229.45 and 3,912.19 is: 5,866.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.67 : 15,229.45 = 3,912.19 : x
  2. Step 2: Convert to fraction form
    10,155.67/15,229.45 = 3,912.19/x
  3. Step 3: Cross multiply
    10,155.67x = 15,229.45 × 3,912.19
  4. Step 4: Simplify right side
    10,155.67x = 59,580,502.00
  5. Step 5: Solve for x
    x = 59,580,502.00/10,155.67
  6. Step 6: Final answer
    x = 5,866.72

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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.