Home / 8,091.24-12,117.70-5,160.66

Finding the Fourth Proportional to 8,091.24, 12,117.70 and 5,160.66

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Solution

The fourth proportional to 8,091.24, 12,117.70 and 5,160.66 is: 7,728.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,091.24 : 12,117.70 = 5,160.66 : x
  2. Step 2: Convert to fraction form
    8,091.24/12,117.70 = 5,160.66/x
  3. Step 3: Cross multiply
    8,091.24x = 12,117.70 × 5,160.66
  4. Step 4: Simplify right side
    8,091.24x = 62,535,329.68
  5. Step 5: Solve for x
    x = 62,535,329.68/8,091.24
  6. Step 6: Final answer
    x = 7,728.77

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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.