Home / 11,114.42-15,339.22-6,399.61

Finding the Fourth Proportional to 11,114.42, 15,339.22 and 6,399.61

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Solution

The fourth proportional to 11,114.42, 15,339.22 and 6,399.61 is: 8,832.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.42 : 15,339.22 = 6,399.61 : x
  2. Step 2: Convert to fraction form
    11,114.42/15,339.22 = 6,399.61/x
  3. Step 3: Cross multiply
    11,114.42x = 15,339.22 × 6,399.61
  4. Step 4: Simplify right side
    11,114.42x = 98,164,971.36
  5. Step 5: Solve for x
    x = 98,164,971.36/11,114.42
  6. Step 6: Final answer
    x = 8,832.22

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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.