Home / 12,423.95-17,145.44-6,759.11

Finding the Fourth Proportional to 12,423.95, 17,145.44 and 6,759.11

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Solution

The fourth proportional to 12,423.95, 17,145.44 and 6,759.11 is: 9,327.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,423.95 : 17,145.44 = 6,759.11 : x
  2. Step 2: Convert to fraction form
    12,423.95/17,145.44 = 6,759.11/x
  3. Step 3: Cross multiply
    12,423.95x = 17,145.44 × 6,759.11
  4. Step 4: Simplify right side
    12,423.95x = 115,887,914.96
  5. Step 5: Solve for x
    x = 115,887,914.96/12,423.95
  6. Step 6: Final answer
    x = 9,327.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.