Home / 11,239.86-16,859.78-3,342.35

Finding the Fourth Proportional to 11,239.86, 16,859.78 and 3,342.35

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Solution

The fourth proportional to 11,239.86, 16,859.78 and 3,342.35 is: 5,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.86 : 16,859.78 = 3,342.35 : x
  2. Step 2: Convert to fraction form
    11,239.86/16,859.78 = 3,342.35/x
  3. Step 3: Cross multiply
    11,239.86x = 16,859.78 × 3,342.35
  4. Step 4: Simplify right side
    11,239.86x = 56,351,247.62
  5. Step 5: Solve for x
    x = 56,351,247.62/11,239.86
  6. Step 6: Final answer
    x = 5,013.52

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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.