Home / 12,191.45-18,254.16-6,335.75

Finding the Fourth Proportional to 12,191.45, 18,254.16 and 6,335.75

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Solution

The fourth proportional to 12,191.45, 18,254.16 and 6,335.75 is: 9,486.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,191.45 : 18,254.16 = 6,335.75 : x
  2. Step 2: Convert to fraction form
    12,191.45/18,254.16 = 6,335.75/x
  3. Step 3: Cross multiply
    12,191.45x = 18,254.16 × 6,335.75
  4. Step 4: Simplify right side
    12,191.45x = 115,653,839.86
  5. Step 5: Solve for x
    x = 115,653,839.86/12,191.45
  6. Step 6: Final answer
    x = 9,486.48

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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.