Home / 19,815.71-27,344.84-11,862.32

Finding the Fourth Proportional to 19,815.71, 27,344.84 and 11,862.32

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Solution

The fourth proportional to 19,815.71, 27,344.84 and 11,862.32 is: 16,369.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815.71 : 27,344.84 = 11,862.32 : x
  2. Step 2: Convert to fraction form
    19,815.71/27,344.84 = 11,862.32/x
  3. Step 3: Cross multiply
    19,815.71x = 27,344.84 × 11,862.32
  4. Step 4: Simplify right side
    19,815.71x = 324,373,251.48
  5. Step 5: Solve for x
    x = 324,373,251.48/19,815.71
  6. Step 6: Final answer
    x = 16,369.50

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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.