Home / 11,247.12-16,872.48-5,403.60

Finding the Fourth Proportional to 11,247.12, 16,872.48 and 5,403.60

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Solution

The fourth proportional to 11,247.12, 16,872.48 and 5,403.60 is: 8,106.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,247.12 : 16,872.48 = 5,403.60 : x
  2. Step 2: Convert to fraction form
    11,247.12/16,872.48 = 5,403.60/x
  3. Step 3: Cross multiply
    11,247.12x = 16,872.48 × 5,403.60
  4. Step 4: Simplify right side
    11,247.12x = 91,172,132.93
  5. Step 5: Solve for x
    x = 91,172,132.93/11,247.12
  6. Step 6: Final answer
    x = 8,106.26

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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.