Home / 11,240.79-15,514.79-8,416.86

Finding the Fourth Proportional to 11,240.79, 15,514.79 and 8,416.86

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Solution

The fourth proportional to 11,240.79, 15,514.79 and 8,416.86 is: 11,617.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.79 : 15,514.79 = 8,416.86 : x
  2. Step 2: Convert to fraction form
    11,240.79/15,514.79 = 8,416.86/x
  3. Step 3: Cross multiply
    11,240.79x = 15,514.79 × 8,416.86
  4. Step 4: Simplify right side
    11,240.79x = 130,585,773.28
  5. Step 5: Solve for x
    x = 130,585,773.28/11,240.79
  6. Step 6: Final answer
    x = 11,617.13

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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.