Home / 7,428.88-11,128.20-4,823.92

Finding the Fourth Proportional to 7,428.88, 11,128.20 and 4,823.92

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Solution

The fourth proportional to 7,428.88, 11,128.20 and 4,823.92 is: 7,226.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,428.88 : 11,128.20 = 4,823.92 : x
  2. Step 2: Convert to fraction form
    7,428.88/11,128.20 = 4,823.92/x
  3. Step 3: Cross multiply
    7,428.88x = 11,128.20 × 4,823.92
  4. Step 4: Simplify right side
    7,428.88x = 53,681,546.54
  5. Step 5: Solve for x
    x = 53,681,546.54/7,428.88
  6. Step 6: Final answer
    x = 7,226.06

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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.