Home / 8,005.88-12,001.56-2,808.92

Finding the Fourth Proportional to 8,005.88, 12,001.56 and 2,808.92

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Solution

The fourth proportional to 8,005.88, 12,001.56 and 2,808.92 is: 4,210.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.88 : 12,001.56 = 2,808.92 : x
  2. Step 2: Convert to fraction form
    8,005.88/12,001.56 = 2,808.92/x
  3. Step 3: Cross multiply
    8,005.88x = 12,001.56 × 2,808.92
  4. Step 4: Simplify right side
    8,005.88x = 33,711,421.92
  5. Step 5: Solve for x
    x = 33,711,421.92/8,005.88
  6. Step 6: Final answer
    x = 4,210.83

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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.