Home / 19,773.66-27,287.10-11,707.72

Finding the Fourth Proportional to 19,773.66, 27,287.10 and 11,707.72

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Solution

The fourth proportional to 19,773.66, 27,287.10 and 11,707.72 is: 16,156.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.66 : 27,287.10 = 11,707.72 : x
  2. Step 2: Convert to fraction form
    19,773.66/27,287.10 = 11,707.72/x
  3. Step 3: Cross multiply
    19,773.66x = 27,287.10 × 11,707.72
  4. Step 4: Simplify right side
    19,773.66x = 319,469,726.41
  5. Step 5: Solve for x
    x = 319,469,726.41/19,773.66
  6. Step 6: Final answer
    x = 16,156.33

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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.