Home / 8,109.08-12,167.21-3,432.32

Finding the Fourth Proportional to 8,109.08, 12,167.21 and 3,432.32

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Solution

The fourth proportional to 8,109.08, 12,167.21 and 3,432.32 is: 5,150.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.08 : 12,167.21 = 3,432.32 : x
  2. Step 2: Convert to fraction form
    8,109.08/12,167.21 = 3,432.32/x
  3. Step 3: Cross multiply
    8,109.08x = 12,167.21 × 3,432.32
  4. Step 4: Simplify right side
    8,109.08x = 41,761,820.04
  5. Step 5: Solve for x
    x = 41,761,820.04/8,109.08
  6. Step 6: Final answer
    x = 5,150.01

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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.