Home / 19,726.07-27,224.11-12,172.21

Finding the Fourth Proportional to 19,726.07, 27,224.11 and 12,172.21

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Solution

The fourth proportional to 19,726.07, 27,224.11 and 12,172.21 is: 16,798.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,726.07 : 27,224.11 = 12,172.21 : x
  2. Step 2: Convert to fraction form
    19,726.07/27,224.11 = 12,172.21/x
  3. Step 3: Cross multiply
    19,726.07x = 27,224.11 × 12,172.21
  4. Step 4: Simplify right side
    19,726.07x = 331,377,447.86
  5. Step 5: Solve for x
    x = 331,377,447.86/19,726.07
  6. Step 6: Final answer
    x = 16,798.96

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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.