Home / 8,421.19-12,633.61-3,227.06

Finding the Fourth Proportional to 8,421.19, 12,633.61 and 3,227.06

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Solution

The fourth proportional to 8,421.19, 12,633.61 and 3,227.06 is: 4,841.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.19 : 12,633.61 = 3,227.06 : x
  2. Step 2: Convert to fraction form
    8,421.19/12,633.61 = 3,227.06/x
  3. Step 3: Cross multiply
    8,421.19x = 12,633.61 × 3,227.06
  4. Step 4: Simplify right side
    8,421.19x = 40,769,417.49
  5. Step 5: Solve for x
    x = 40,769,417.49/8,421.19
  6. Step 6: Final answer
    x = 4,841.29

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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.