Home / 18,815.42-25,967.97-10,860.38

Finding the Fourth Proportional to 18,815.42, 25,967.97 and 10,860.38

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Solution

The fourth proportional to 18,815.42, 25,967.97 and 10,860.38 is: 14,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,815.42 : 25,967.97 = 10,860.38 : x
  2. Step 2: Convert to fraction form
    18,815.42/25,967.97 = 10,860.38/x
  3. Step 3: Cross multiply
    18,815.42x = 25,967.97 × 10,860.38
  4. Step 4: Simplify right side
    18,815.42x = 282,022,022.03
  5. Step 5: Solve for x
    x = 282,022,022.03/18,815.42
  6. Step 6: Final answer
    x = 14,988.88

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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.