Home / 18,286.59-27,428.97-6,440.95

Finding the Fourth Proportional to 18,286.59, 27,428.97 and 6,440.95

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Solution

The fourth proportional to 18,286.59, 27,428.97 and 6,440.95 is: 9,661.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,286.59 : 27,428.97 = 6,440.95 : x
  2. Step 2: Convert to fraction form
    18,286.59/27,428.97 = 6,440.95/x
  3. Step 3: Cross multiply
    18,286.59x = 27,428.97 × 6,440.95
  4. Step 4: Simplify right side
    18,286.59x = 176,668,624.32
  5. Step 5: Solve for x
    x = 176,668,624.32/18,286.59
  6. Step 6: Final answer
    x = 9,661.10

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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.