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Finding the Fourth Proportional to 18,662.40, 27,979.02 and 10,337.22

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Solution

The fourth proportional to 18,662.40, 27,979.02 and 10,337.22 is: 15,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,662.40 : 27,979.02 = 10,337.22 : x
  2. Step 2: Convert to fraction form
    18,662.40/27,979.02 = 10,337.22/x
  3. Step 3: Cross multiply
    18,662.40x = 27,979.02 × 10,337.22
  4. Step 4: Simplify right side
    18,662.40x = 289,225,285.12
  5. Step 5: Solve for x
    x = 289,225,285.12/18,662.40
  6. Step 6: Final answer
    x = 15,497.75

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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.