Home / 7,877.68-11,812.41-3,716.57

Finding the Fourth Proportional to 7,877.68, 11,812.41 and 3,716.57

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Solution

The fourth proportional to 7,877.68, 11,812.41 and 3,716.57 is: 5,572.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877.68 : 11,812.41 = 3,716.57 : x
  2. Step 2: Convert to fraction form
    7,877.68/11,812.41 = 3,716.57/x
  3. Step 3: Cross multiply
    7,877.68x = 11,812.41 × 3,716.57
  4. Step 4: Simplify right side
    7,877.68x = 43,901,648.63
  5. Step 5: Solve for x
    x = 43,901,648.63/7,877.68
  6. Step 6: Final answer
    x = 5,572.92

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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.