Home / 8,156.88-11,261.16-5,370.48

Finding the Fourth Proportional to 8,156.88, 11,261.16 and 5,370.48

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Solution

The fourth proportional to 8,156.88, 11,261.16 and 5,370.48 is: 7,414.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.88 : 11,261.16 = 5,370.48 : x
  2. Step 2: Convert to fraction form
    8,156.88/11,261.16 = 5,370.48/x
  3. Step 3: Cross multiply
    8,156.88x = 11,261.16 × 5,370.48
  4. Step 4: Simplify right side
    8,156.88x = 60,477,834.56
  5. Step 5: Solve for x
    x = 60,477,834.56/8,156.88
  6. Step 6: Final answer
    x = 7,414.33

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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.