Home / 8,311.98-11,465.43-5,479.62

Finding the Fourth Proportional to 8,311.98, 11,465.43 and 5,479.62

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Solution

The fourth proportional to 8,311.98, 11,465.43 and 5,479.62 is: 7,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.98 : 11,465.43 = 5,479.62 : x
  2. Step 2: Convert to fraction form
    8,311.98/11,465.43 = 5,479.62/x
  3. Step 3: Cross multiply
    8,311.98x = 11,465.43 × 5,479.62
  4. Step 4: Simplify right side
    8,311.98x = 62,826,199.54
  5. Step 5: Solve for x
    x = 62,826,199.54/8,311.98
  6. Step 6: Final answer
    x = 7,558.51

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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.