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Finding the Fourth Proportional to 18,313, 25,246.02 and 13,019.92

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Solution

The fourth proportional to 18,313, 25,246.02 and 13,019.92 is: 17,949.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313 : 25,246.02 = 13,019.92 : x
  2. Step 2: Convert to fraction form
    18,313/25,246.02 = 13,019.92/x
  3. Step 3: Cross multiply
    18,313x = 25,246.02 × 13,019.92
  4. Step 4: Simplify right side
    18,313x = 328,701,160.72
  5. Step 5: Solve for x
    x = 328,701,160.72/18,313
  6. Step 6: Final answer
    x = 17,949.06

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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.