Home / 18,967.24-28,470.90-10,654.36

Finding the Fourth Proportional to 18,967.24, 28,470.90 and 10,654.36

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Solution

The fourth proportional to 18,967.24, 28,470.90 and 10,654.36 is: 15,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.24 : 28,470.90 = 10,654.36 : x
  2. Step 2: Convert to fraction form
    18,967.24/28,470.90 = 10,654.36/x
  3. Step 3: Cross multiply
    18,967.24x = 28,470.90 × 10,654.36
  4. Step 4: Simplify right side
    18,967.24x = 303,339,218.12
  5. Step 5: Solve for x
    x = 303,339,218.12/18,967.24
  6. Step 6: Final answer
    x = 15,992.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.