Home / 11,270.07-15,538.52-7,229.75

Finding the Fourth Proportional to 11,270.07, 15,538.52 and 7,229.75

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Solution

The fourth proportional to 11,270.07, 15,538.52 and 7,229.75 is: 9,967.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.07 : 15,538.52 = 7,229.75 : x
  2. Step 2: Convert to fraction form
    11,270.07/15,538.52 = 7,229.75/x
  3. Step 3: Cross multiply
    11,270.07x = 15,538.52 × 7,229.75
  4. Step 4: Simplify right side
    11,270.07x = 112,339,555.35
  5. Step 5: Solve for x
    x = 112,339,555.35/11,270.07
  6. Step 6: Final answer
    x = 9,967.96

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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.