Home / 26,781.64-40,186.13-10,998.79

Finding the Fourth Proportional to 26,781.64, 40,186.13 and 10,998.79

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Solution

The fourth proportional to 26,781.64, 40,186.13 and 10,998.79 is: 16,503.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,781.64 : 40,186.13 = 10,998.79 : x
  2. Step 2: Convert to fraction form
    26,781.64/40,186.13 = 10,998.79/x
  3. Step 3: Cross multiply
    26,781.64x = 40,186.13 × 10,998.79
  4. Step 4: Simplify right side
    26,781.64x = 441,998,649.32
  5. Step 5: Solve for x
    x = 441,998,649.32/26,781.64
  6. Step 6: Final answer
    x = 16,503.79

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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.