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Finding the Fourth Proportional to 18,666, 25,759.08 and 10,284.12

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Solution

The fourth proportional to 18,666, 25,759.08 and 10,284.12 is: 14,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,666 : 25,759.08 = 10,284.12 : x
  2. Step 2: Convert to fraction form
    18,666/25,759.08 = 10,284.12/x
  3. Step 3: Cross multiply
    18,666x = 25,759.08 × 10,284.12
  4. Step 4: Simplify right side
    18,666x = 264,909,469.81
  5. Step 5: Solve for x
    x = 264,909,469.81/18,666
  6. Step 6: Final answer
    x = 14,192.09

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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.