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Finding the Fourth Proportional to 18,218.93, 27,328.39 and 14,065.00

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Solution

The fourth proportional to 18,218.93, 27,328.39 and 14,065.00 is: 21,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,218.93 : 27,328.39 = 14,065.00 : x
  2. Step 2: Convert to fraction form
    18,218.93/27,328.39 = 14,065.00/x
  3. Step 3: Cross multiply
    18,218.93x = 27,328.39 × 14,065.00
  4. Step 4: Simplify right side
    18,218.93x = 384,373,668.71
  5. Step 5: Solve for x
    x = 384,373,668.71/18,218.93
  6. Step 6: Final answer
    x = 21,097.49

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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.