Home / 18,786.81-25,926.62-10,403.31

Finding the Fourth Proportional to 18,786.81, 25,926.62 and 10,403.31

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Solution

The fourth proportional to 18,786.81, 25,926.62 and 10,403.31 is: 14,357.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,786.81 : 25,926.62 = 10,403.31 : x
  2. Step 2: Convert to fraction form
    18,786.81/25,926.62 = 10,403.31/x
  3. Step 3: Cross multiply
    18,786.81x = 25,926.62 × 10,403.31
  4. Step 4: Simplify right side
    18,786.81x = 269,722,665.11
  5. Step 5: Solve for x
    x = 269,722,665.11/18,786.81
  6. Step 6: Final answer
    x = 14,357.02

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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.