Home / 26,659.86-39,990.87-9,131.46

Finding the Fourth Proportional to 26,659.86, 39,990.87 and 9,131.46

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Solution

The fourth proportional to 26,659.86, 39,990.87 and 9,131.46 is: 13,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,659.86 : 39,990.87 = 9,131.46 : x
  2. Step 2: Convert to fraction form
    26,659.86/39,990.87 = 9,131.46/x
  3. Step 3: Cross multiply
    26,659.86x = 39,990.87 × 9,131.46
  4. Step 4: Simplify right side
    26,659.86x = 365,175,029.77
  5. Step 5: Solve for x
    x = 365,175,029.77/26,659.86
  6. Step 6: Final answer
    x = 13,697.56

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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.