Home / 20,126.06-27,774.29-11,174.14

Finding the Fourth Proportional to 20,126.06, 27,774.29 and 11,174.14

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Solution

The fourth proportional to 20,126.06, 27,774.29 and 11,174.14 is: 15,420.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.06 : 27,774.29 = 11,174.14 : x
  2. Step 2: Convert to fraction form
    20,126.06/27,774.29 = 11,174.14/x
  3. Step 3: Cross multiply
    20,126.06x = 27,774.29 × 11,174.14
  4. Step 4: Simplify right side
    20,126.06x = 310,353,804.86
  5. Step 5: Solve for x
    x = 310,353,804.86/20,126.06
  6. Step 6: Final answer
    x = 15,420.49

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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.