Home / 8,878.12-13,326.42-6,540.77

Finding the Fourth Proportional to 8,878.12, 13,326.42 and 6,540.77

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Solution

The fourth proportional to 8,878.12, 13,326.42 and 6,540.77 is: 9,817.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.12 : 13,326.42 = 6,540.77 : x
  2. Step 2: Convert to fraction form
    8,878.12/13,326.42 = 6,540.77/x
  3. Step 3: Cross multiply
    8,878.12x = 13,326.42 × 6,540.77
  4. Step 4: Simplify right side
    8,878.12x = 87,165,048.14
  5. Step 5: Solve for x
    x = 87,165,048.14/8,878.12
  6. Step 6: Final answer
    x = 9,817.96

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1.5x scale

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.