Home / 26,379.28-39,572.76-7,912.72

Finding the Fourth Proportional to 26,379.28, 39,572.76 and 7,912.72

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Solution

The fourth proportional to 26,379.28, 39,572.76 and 7,912.72 is: 11,870.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,379.28 : 39,572.76 = 7,912.72 : x
  2. Step 2: Convert to fraction form
    26,379.28/39,572.76 = 7,912.72/x
  3. Step 3: Cross multiply
    26,379.28x = 39,572.76 × 7,912.72
  4. Step 4: Simplify right side
    26,379.28x = 313,128,169.51
  5. Step 5: Solve for x
    x = 313,128,169.51/26,379.28
  6. Step 6: Final answer
    x = 11,870.23

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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.