Home / 8,875.58-12,249.97-5,519.75

Finding the Fourth Proportional to 8,875.58, 12,249.97 and 5,519.75

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Solution

The fourth proportional to 8,875.58, 12,249.97 and 5,519.75 is: 7,618.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.58 : 12,249.97 = 5,519.75 : x
  2. Step 2: Convert to fraction form
    8,875.58/12,249.97 = 5,519.75/x
  3. Step 3: Cross multiply
    8,875.58x = 12,249.97 × 5,519.75
  4. Step 4: Simplify right side
    8,875.58x = 67,616,696.86
  5. Step 5: Solve for x
    x = 67,616,696.86/8,875.58
  6. Step 6: Final answer
    x = 7,618.29

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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.