Home / 9,439.82-13,026.96-5,190.95

Finding the Fourth Proportional to 9,439.82, 13,026.96 and 5,190.95

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Solution

The fourth proportional to 9,439.82, 13,026.96 and 5,190.95 is: 7,163.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.82 : 13,026.96 = 5,190.95 : x
  2. Step 2: Convert to fraction form
    9,439.82/13,026.96 = 5,190.95/x
  3. Step 3: Cross multiply
    9,439.82x = 13,026.96 × 5,190.95
  4. Step 4: Simplify right side
    9,439.82x = 67,622,206.92
  5. Step 5: Solve for x
    x = 67,622,206.92/9,439.82
  6. Step 6: Final answer
    x = 7,163.51

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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.