Home / 11,118.09-15,343.62-6,339.48

Finding the Fourth Proportional to 11,118.09, 15,343.62 and 6,339.48

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Solution

The fourth proportional to 11,118.09, 15,343.62 and 6,339.48 is: 8,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.09 : 15,343.62 = 6,339.48 : x
  2. Step 2: Convert to fraction form
    11,118.09/15,343.62 = 6,339.48/x
  3. Step 3: Cross multiply
    11,118.09x = 15,343.62 × 6,339.48
  4. Step 4: Simplify right side
    11,118.09x = 97,270,572.12
  5. Step 5: Solve for x
    x = 97,270,572.12/11,118.09
  6. Step 6: Final answer
    x = 8,748.86

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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.