Home / 8,465.77-11,684.15-5,108.79

Finding the Fourth Proportional to 8,465.77, 11,684.15 and 5,108.79

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Solution

The fourth proportional to 8,465.77, 11,684.15 and 5,108.79 is: 7,050.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,465.77 : 11,684.15 = 5,108.79 : x
  2. Step 2: Convert to fraction form
    8,465.77/11,684.15 = 5,108.79/x
  3. Step 3: Cross multiply
    8,465.77x = 11,684.15 × 5,108.79
  4. Step 4: Simplify right side
    8,465.77x = 59,691,868.68
  5. Step 5: Solve for x
    x = 59,691,868.68/8,465.77
  6. Step 6: Final answer
    x = 7,050.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.