Home / 7,685.94-11,519.80-3,294.12

Finding the Fourth Proportional to 7,685.94, 11,519.80 and 3,294.12

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Solution

The fourth proportional to 7,685.94, 11,519.80 and 3,294.12 is: 4,937.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.94 : 11,519.80 = 3,294.12 : x
  2. Step 2: Convert to fraction form
    7,685.94/11,519.80 = 3,294.12/x
  3. Step 3: Cross multiply
    7,685.94x = 11,519.80 × 3,294.12
  4. Step 4: Simplify right side
    7,685.94x = 37,947,603.58
  5. Step 5: Solve for x
    x = 37,947,603.58/7,685.94
  6. Step 6: Final answer
    x = 4,937.28

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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.