Home / 8,215.11-12,323.78-2,666.66

Finding the Fourth Proportional to 8,215.11, 12,323.78 and 2,666.66

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Solution

The fourth proportional to 8,215.11, 12,323.78 and 2,666.66 is: 4,000.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.11 : 12,323.78 = 2,666.66 : x
  2. Step 2: Convert to fraction form
    8,215.11/12,323.78 = 2,666.66/x
  3. Step 3: Cross multiply
    8,215.11x = 12,323.78 × 2,666.66
  4. Step 4: Simplify right side
    8,215.11x = 32,863,256.22
  5. Step 5: Solve for x
    x = 32,863,256.22/8,215.11
  6. Step 6: Final answer
    x = 4,000.34

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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.