Home / 11,119.68-15,339.24-6,873.12

Finding the Fourth Proportional to 11,119.68, 15,339.24 and 6,873.12

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Solution

The fourth proportional to 11,119.68, 15,339.24 and 6,873.12 is: 9,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,119.68 : 15,339.24 = 6,873.12 : x
  2. Step 2: Convert to fraction form
    11,119.68/15,339.24 = 6,873.12/x
  3. Step 3: Cross multiply
    11,119.68x = 15,339.24 × 6,873.12
  4. Step 4: Simplify right side
    11,119.68x = 105,428,437.23
  5. Step 5: Solve for x
    x = 105,428,437.23/11,119.68
  6. Step 6: Final answer
    x = 9,481.25

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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.