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Finding the Fourth Proportional to 18,809, 25,956.57 and 10,425.50

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Solution

The fourth proportional to 18,809, 25,956.57 and 10,425.50 is: 14,387.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,809 : 25,956.57 = 10,425.50 : x
  2. Step 2: Convert to fraction form
    18,809/25,956.57 = 10,425.50/x
  3. Step 3: Cross multiply
    18,809x = 25,956.57 × 10,425.50
  4. Step 4: Simplify right side
    18,809x = 270,610,220.54
  5. Step 5: Solve for x
    x = 270,610,220.54/18,809
  6. Step 6: Final answer
    x = 14,387.27

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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.