Home / 11,917.12-16,445.52-6,882.40

Finding the Fourth Proportional to 11,917.12, 16,445.52 and 6,882.40

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Solution

The fourth proportional to 11,917.12, 16,445.52 and 6,882.40 is: 9,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.12 : 16,445.52 = 6,882.40 : x
  2. Step 2: Convert to fraction form
    11,917.12/16,445.52 = 6,882.40/x
  3. Step 3: Cross multiply
    11,917.12x = 16,445.52 × 6,882.40
  4. Step 4: Simplify right side
    11,917.12x = 113,184,646.85
  5. Step 5: Solve for x
    x = 113,184,646.85/11,917.12
  6. Step 6: Final answer
    x = 9,497.65

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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.