Home / 26,778.09-40,178.15-11,777.49

Finding the Fourth Proportional to 26,778.09, 40,178.15 and 11,777.49

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Solution

The fourth proportional to 26,778.09, 40,178.15 and 11,777.49 is: 17,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,778.09 : 40,178.15 = 11,777.49 : x
  2. Step 2: Convert to fraction form
    26,778.09/40,178.15 = 11,777.49/x
  3. Step 3: Cross multiply
    26,778.09x = 40,178.15 × 11,777.49
  4. Step 4: Simplify right side
    26,778.09x = 473,197,700.96
  5. Step 5: Solve for x
    x = 473,197,700.96/26,778.09
  6. Step 6: Final answer
    x = 17,671.08

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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.