Home / 8,716.24-12,028.32-6,488.08

Finding the Fourth Proportional to 8,716.24, 12,028.32 and 6,488.08

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Solution

The fourth proportional to 8,716.24, 12,028.32 and 6,488.08 is: 8,953.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.24 : 12,028.32 = 6,488.08 : x
  2. Step 2: Convert to fraction form
    8,716.24/12,028.32 = 6,488.08/x
  3. Step 3: Cross multiply
    8,716.24x = 12,028.32 × 6,488.08
  4. Step 4: Simplify right side
    8,716.24x = 78,040,702.43
  5. Step 5: Solve for x
    x = 78,040,702.43/8,716.24
  6. Step 6: Final answer
    x = 8,953.48

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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.