Home / 8,559.36-12,840.32-2,716.16

Finding the Fourth Proportional to 8,559.36, 12,840.32 and 2,716.16

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Solution

The fourth proportional to 8,559.36, 12,840.32 and 2,716.16 is: 4,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.36 : 12,840.32 = 2,716.16 : x
  2. Step 2: Convert to fraction form
    8,559.36/12,840.32 = 2,716.16/x
  3. Step 3: Cross multiply
    8,559.36x = 12,840.32 × 2,716.16
  4. Step 4: Simplify right side
    8,559.36x = 34,876,363.57
  5. Step 5: Solve for x
    x = 34,876,363.57/8,559.36
  6. Step 6: Final answer
    x = 4,074.65

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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.