Home / 8,716.99-12,029.36-6,488.83

Finding the Fourth Proportional to 8,716.99, 12,029.36 and 6,488.83

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Solution

The fourth proportional to 8,716.99, 12,029.36 and 6,488.83 is: 8,954.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.99 : 12,029.36 = 6,488.83 : x
  2. Step 2: Convert to fraction form
    8,716.99/12,029.36 = 6,488.83/x
  3. Step 3: Cross multiply
    8,716.99x = 12,029.36 × 6,488.83
  4. Step 4: Simplify right side
    8,716.99x = 78,056,439.60
  5. Step 5: Solve for x
    x = 78,056,439.60/8,716.99
  6. Step 6: Final answer
    x = 8,954.52

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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.