Home / 26,178.80-39,255.06-12,126.74

Finding the Fourth Proportional to 26,178.80, 39,255.06 and 12,126.74

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Solution

The fourth proportional to 26,178.80, 39,255.06 and 12,126.74 is: 18,184.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,178.80 : 39,255.06 = 12,126.74 : x
  2. Step 2: Convert to fraction form
    26,178.80/39,255.06 = 12,126.74/x
  3. Step 3: Cross multiply
    26,178.80x = 39,255.06 × 12,126.74
  4. Step 4: Simplify right side
    26,178.80x = 476,035,906.30
  5. Step 5: Solve for x
    x = 476,035,906.30/26,178.80
  6. Step 6: Final answer
    x = 18,184.02

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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.