Home / 18,822.86-25,975.15-11,650.87

Finding the Fourth Proportional to 18,822.86, 25,975.15 and 11,650.87

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Solution

The fourth proportional to 18,822.86, 25,975.15 and 11,650.87 is: 16,077.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.86 : 25,975.15 = 11,650.87 : x
  2. Step 2: Convert to fraction form
    18,822.86/25,975.15 = 11,650.87/x
  3. Step 3: Cross multiply
    18,822.86x = 25,975.15 × 11,650.87
  4. Step 4: Simplify right side
    18,822.86x = 302,633,095.88
  5. Step 5: Solve for x
    x = 302,633,095.88/18,822.86
  6. Step 6: Final answer
    x = 16,077.95

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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.