Home / 11,029.68-15,218.82-7,047.72

Finding the Fourth Proportional to 11,029.68, 15,218.82 and 7,047.72

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Solution

The fourth proportional to 11,029.68, 15,218.82 and 7,047.72 is: 9,724.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.68 : 15,218.82 = 7,047.72 : x
  2. Step 2: Convert to fraction form
    11,029.68/15,218.82 = 7,047.72/x
  3. Step 3: Cross multiply
    11,029.68x = 15,218.82 × 7,047.72
  4. Step 4: Simplify right side
    11,029.68x = 107,257,982.09
  5. Step 5: Solve for x
    x = 107,257,982.09/11,029.68
  6. Step 6: Final answer
    x = 9,724.49

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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.