Home / 11,255.24-15,531.43-6,219.40

Finding the Fourth Proportional to 11,255.24, 15,531.43 and 6,219.40

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Solution

The fourth proportional to 11,255.24, 15,531.43 and 6,219.40 is: 8,582.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,255.24 : 15,531.43 = 6,219.40 : x
  2. Step 2: Convert to fraction form
    11,255.24/15,531.43 = 6,219.40/x
  3. Step 3: Cross multiply
    11,255.24x = 15,531.43 × 6,219.40
  4. Step 4: Simplify right side
    11,255.24x = 96,596,144.65
  5. Step 5: Solve for x
    x = 96,596,144.65/11,255.24
  6. Step 6: Final answer
    x = 8,582.33

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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.