Home / 18,782.48-25,920.96-10,399.52

Finding the Fourth Proportional to 18,782.48, 25,920.96 and 10,399.52

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Solution

The fourth proportional to 18,782.48, 25,920.96 and 10,399.52 is: 14,351.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,782.48 : 25,920.96 = 10,399.52 : x
  2. Step 2: Convert to fraction form
    18,782.48/25,920.96 = 10,399.52/x
  3. Step 3: Cross multiply
    18,782.48x = 25,920.96 × 10,399.52
  4. Step 4: Simplify right side
    18,782.48x = 269,565,541.94
  5. Step 5: Solve for x
    x = 269,565,541.94/18,782.48
  6. Step 6: Final answer
    x = 14,351.97

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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.