Home / 8,110.95-12,165.42-2,188.32

Finding the Fourth Proportional to 8,110.95, 12,165.42 and 2,188.32

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Solution

The fourth proportional to 8,110.95, 12,165.42 and 2,188.32 is: 3,282.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,110.95 : 12,165.42 = 2,188.32 : x
  2. Step 2: Convert to fraction form
    8,110.95/12,165.42 = 2,188.32/x
  3. Step 3: Cross multiply
    8,110.95x = 12,165.42 × 2,188.32
  4. Step 4: Simplify right side
    8,110.95x = 26,621,862.91
  5. Step 5: Solve for x
    x = 26,621,862.91/8,110.95
  6. Step 6: Final answer
    x = 3,282.21

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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.