Home / 26,147.78-39,221.33-6,426.51

Finding the Fourth Proportional to 26,147.78, 39,221.33 and 6,426.51

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Solution

The fourth proportional to 26,147.78, 39,221.33 and 6,426.51 is: 9,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,147.78 : 39,221.33 = 6,426.51 : x
  2. Step 2: Convert to fraction form
    26,147.78/39,221.33 = 6,426.51/x
  3. Step 3: Cross multiply
    26,147.78x = 39,221.33 × 6,426.51
  4. Step 4: Simplify right side
    26,147.78x = 252,056,269.46
  5. Step 5: Solve for x
    x = 252,056,269.46/26,147.78
  6. Step 6: Final answer
    x = 9,639.68

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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.