Home / 18,815.92-25,968.66-10,860.88

Finding the Fourth Proportional to 18,815.92, 25,968.66 and 10,860.88

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Solution

The fourth proportional to 18,815.92, 25,968.66 and 10,860.88 is: 14,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.92 : 25,968.66 = 10,860.88 : x
  2. Step 2: Convert to fraction form
    18,815.92/25,968.66 = 10,860.88/x
  3. Step 3: Cross multiply
    18,815.92x = 25,968.66 × 10,860.88
  4. Step 4: Simplify right side
    18,815.92x = 282,042,500.02
  5. Step 5: Solve for x
    x = 282,042,500.02/18,815.92
  6. Step 6: Final answer
    x = 14,989.57

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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.