Home / 7,961.46-10,991.61-5,274.95

Finding the Fourth Proportional to 7,961.46, 10,991.61 and 5,274.95

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Solution

The fourth proportional to 7,961.46, 10,991.61 and 5,274.95 is: 7,282.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.46 : 10,991.61 = 5,274.95 : x
  2. Step 2: Convert to fraction form
    7,961.46/10,991.61 = 5,274.95/x
  3. Step 3: Cross multiply
    7,961.46x = 10,991.61 × 5,274.95
  4. Step 4: Simplify right side
    7,961.46x = 57,980,193.17
  5. Step 5: Solve for x
    x = 57,980,193.17/7,961.46
  6. Step 6: Final answer
    x = 7,282.61

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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.