Home / 18,399.29-25,387.07-10,440.89

Finding the Fourth Proportional to 18,399.29, 25,387.07 and 10,440.89

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Solution

The fourth proportional to 18,399.29, 25,387.07 and 10,440.89 is: 14,406.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,399.29 : 25,387.07 = 10,440.89 : x
  2. Step 2: Convert to fraction form
    18,399.29/25,387.07 = 10,440.89/x
  3. Step 3: Cross multiply
    18,399.29x = 25,387.07 × 10,440.89
  4. Step 4: Simplify right side
    18,399.29x = 265,063,553.09
  5. Step 5: Solve for x
    x = 265,063,553.09/18,399.29
  6. Step 6: Final answer
    x = 14,406.18

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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.