Home / 11,979.42-16,527.15-8,445.66

Finding the Fourth Proportional to 11,979.42, 16,527.15 and 8,445.66

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Solution

The fourth proportional to 11,979.42, 16,527.15 and 8,445.66 is: 11,651.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.42 : 16,527.15 = 8,445.66 : x
  2. Step 2: Convert to fraction form
    11,979.42/16,527.15 = 8,445.66/x
  3. Step 3: Cross multiply
    11,979.42x = 16,527.15 × 8,445.66
  4. Step 4: Simplify right side
    11,979.42x = 139,582,689.67
  5. Step 5: Solve for x
    x = 139,582,689.67/11,979.42
  6. Step 6: Final answer
    x = 11,651.87

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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.