Home / 18,139.93-27,168.08-13,110.44

Finding the Fourth Proportional to 18,139.93, 27,168.08 and 13,110.44

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Solution

The fourth proportional to 18,139.93, 27,168.08 and 13,110.44 is: 19,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.93 : 27,168.08 = 13,110.44 : x
  2. Step 2: Convert to fraction form
    18,139.93/27,168.08 = 13,110.44/x
  3. Step 3: Cross multiply
    18,139.93x = 27,168.08 × 13,110.44
  4. Step 4: Simplify right side
    18,139.93x = 356,185,281.36
  5. Step 5: Solve for x
    x = 356,185,281.36/18,139.93
  6. Step 6: Final answer
    x = 19,635.43

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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.