Home / 7,955.69-11,937.38-3,279.15

Finding the Fourth Proportional to 7,955.69, 11,937.38 and 3,279.15

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Solution

The fourth proportional to 7,955.69, 11,937.38 and 3,279.15 is: 4,920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,955.69 : 11,937.38 = 3,279.15 : x
  2. Step 2: Convert to fraction form
    7,955.69/11,937.38 = 3,279.15/x
  3. Step 3: Cross multiply
    7,955.69x = 11,937.38 × 3,279.15
  4. Step 4: Simplify right side
    7,955.69x = 39,144,443.23
  5. Step 5: Solve for x
    x = 39,144,443.23/7,955.69
  6. Step 6: Final answer
    x = 4,920.31

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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.