Home / 11,722.39-16,174.32-6,939.95

Finding the Fourth Proportional to 11,722.39, 16,174.32 and 6,939.95

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Solution

The fourth proportional to 11,722.39, 16,174.32 and 6,939.95 is: 9,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.39 : 16,174.32 = 6,939.95 : x
  2. Step 2: Convert to fraction form
    11,722.39/16,174.32 = 6,939.95/x
  3. Step 3: Cross multiply
    11,722.39x = 16,174.32 × 6,939.95
  4. Step 4: Simplify right side
    11,722.39x = 112,248,865.19
  5. Step 5: Solve for x
    x = 112,248,865.19/11,722.39
  6. Step 6: Final answer
    x = 9,575.60

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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.