Home / 13,600,850.13-18,768,439.13-7,799,876.37

Finding the Fourth Proportional to 13,600,850.13, 18,768,439.13 and 7,799,876.37

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Solution

The fourth proportional to 13,600,850.13, 18,768,439.13 and 7,799,876.37 is: 10,763,408.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600,850.13 : 18,768,439.13 = 7,799,876.37 : x
  2. Step 2: Convert to fraction form
    13,600,850.13/18,768,439.13 = 7,799,876.37/x
  3. Step 3: Cross multiply
    13,600,850.13x = 18,768,439.13 × 7,799,876.37
  4. Step 4: Simplify right side
    13,600,850.13x = 146,391,504,832,870.97
  5. Step 5: Solve for x
    x = 146,391,504,832,870.97/13,600,850.13
  6. Step 6: Final answer
    x = 10,763,408.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.