Home / 11,721.08-16,174.69-6,686.93

Finding the Fourth Proportional to 11,721.08, 16,174.69 and 6,686.93

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Solution

The fourth proportional to 11,721.08, 16,174.69 and 6,686.93 is: 9,227.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.08 : 16,174.69 = 6,686.93 : x
  2. Step 2: Convert to fraction form
    11,721.08/16,174.69 = 6,686.93/x
  3. Step 3: Cross multiply
    11,721.08x = 16,174.69 × 6,686.93
  4. Step 4: Simplify right side
    11,721.08x = 108,158,998.03
  5. Step 5: Solve for x
    x = 108,158,998.03/11,721.08
  6. Step 6: Final answer
    x = 9,227.73

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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.