Home / 7,419.28-11,128.89-3,036.73

Finding the Fourth Proportional to 7,419.28, 11,128.89 and 3,036.73

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Solution

The fourth proportional to 7,419.28, 11,128.89 and 3,036.73 is: 4,555.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,419.28 : 11,128.89 = 3,036.73 : x
  2. Step 2: Convert to fraction form
    7,419.28/11,128.89 = 3,036.73/x
  3. Step 3: Cross multiply
    7,419.28x = 11,128.89 × 3,036.73
  4. Step 4: Simplify right side
    7,419.28x = 33,795,434.13
  5. Step 5: Solve for x
    x = 33,795,434.13/7,419.28
  6. Step 6: Final answer
    x = 4,555.08

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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.