Home / 26,661.50-39,948.48-9,121.76

Finding the Fourth Proportional to 26,661.50, 39,948.48 and 9,121.76

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Solution

The fourth proportional to 26,661.50, 39,948.48 and 9,121.76 is: 13,667.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,661.50 : 39,948.48 = 9,121.76 : x
  2. Step 2: Convert to fraction form
    26,661.50/39,948.48 = 9,121.76/x
  3. Step 3: Cross multiply
    26,661.50x = 39,948.48 × 9,121.76
  4. Step 4: Simplify right side
    26,661.50x = 364,400,446.92
  5. Step 5: Solve for x
    x = 364,400,446.92/26,661.50
  6. Step 6: Final answer
    x = 13,667.66

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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.