Home / 13,868.52-19,131.84-9,086.36

Finding the Fourth Proportional to 13,868.52, 19,131.84 and 9,086.36

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Solution

The fourth proportional to 13,868.52, 19,131.84 and 9,086.36 is: 12,534.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.52 : 19,131.84 = 9,086.36 : x
  2. Step 2: Convert to fraction form
    13,868.52/19,131.84 = 9,086.36/x
  3. Step 3: Cross multiply
    13,868.52x = 19,131.84 × 9,086.36
  4. Step 4: Simplify right side
    13,868.52x = 173,838,785.70
  5. Step 5: Solve for x
    x = 173,838,785.70/13,868.52
  6. Step 6: Final answer
    x = 12,534.78

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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.