Home / 26,187.40-39,233.10-12,305.80

Finding the Fourth Proportional to 26,187.40, 39,233.10 and 12,305.80

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Solution

The fourth proportional to 26,187.40, 39,233.10 and 12,305.80 is: 18,436.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,187.40 : 39,233.10 = 12,305.80 : x
  2. Step 2: Convert to fraction form
    26,187.40/39,233.10 = 12,305.80/x
  3. Step 3: Cross multiply
    26,187.40x = 39,233.10 × 12,305.80
  4. Step 4: Simplify right side
    26,187.40x = 482,794,681.98
  5. Step 5: Solve for x
    x = 482,794,681.98/26,187.40
  6. Step 6: Final answer
    x = 18,436.14

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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.