Home / 7,906.90-11,862.29-5,571.46

Finding the Fourth Proportional to 7,906.90, 11,862.29 and 5,571.46

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Solution

The fourth proportional to 7,906.90, 11,862.29 and 5,571.46 is: 8,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,906.90 : 11,862.29 = 5,571.46 : x
  2. Step 2: Convert to fraction form
    7,906.90/11,862.29 = 5,571.46/x
  3. Step 3: Cross multiply
    7,906.90x = 11,862.29 × 5,571.46
  4. Step 4: Simplify right side
    7,906.90x = 66,090,274.24
  5. Step 5: Solve for x
    x = 66,090,274.24/7,906.90
  6. Step 6: Final answer
    x = 8,358.56

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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.