Home / 13,824.39-19,080.10-8,158.73

Finding the Fourth Proportional to 13,824.39, 19,080.10 and 8,158.73

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Solution

The fourth proportional to 13,824.39, 19,080.10 and 8,158.73 is: 11,260.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.39 : 19,080.10 = 8,158.73 : x
  2. Step 2: Convert to fraction form
    13,824.39/19,080.10 = 8,158.73/x
  3. Step 3: Cross multiply
    13,824.39x = 19,080.10 × 8,158.73
  4. Step 4: Simplify right side
    13,824.39x = 155,669,288.87
  5. Step 5: Solve for x
    x = 155,669,288.87/13,824.39
  6. Step 6: Final answer
    x = 11,260.49

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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.