Home / 26,726.88-40,077.72-7,999.68

Finding the Fourth Proportional to 26,726.88, 40,077.72 and 7,999.68

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Solution

The fourth proportional to 26,726.88, 40,077.72 and 7,999.68 is: 11,995.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,726.88 : 40,077.72 = 7,999.68 : x
  2. Step 2: Convert to fraction form
    26,726.88/40,077.72 = 7,999.68/x
  3. Step 3: Cross multiply
    26,726.88x = 40,077.72 × 7,999.68
  4. Step 4: Simplify right side
    26,726.88x = 320,608,935.13
  5. Step 5: Solve for x
    x = 320,608,935.13/26,726.88
  6. Step 6: Final answer
    x = 11,995.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.