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Finding the Fourth Proportional to 18,226.71, 27,340.11 and 13,141.98

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Solution

The fourth proportional to 18,226.71, 27,340.11 and 13,141.98 is: 19,713.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.71 : 27,340.11 = 13,141.98 : x
  2. Step 2: Convert to fraction form
    18,226.71/27,340.11 = 13,141.98/x
  3. Step 3: Cross multiply
    18,226.71x = 27,340.11 × 13,141.98
  4. Step 4: Simplify right side
    18,226.71x = 359,303,178.82
  5. Step 5: Solve for x
    x = 359,303,178.82/18,226.71
  6. Step 6: Final answer
    x = 19,713.00

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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.