Home / 9,439.43-13,026.46-5,190.76

Finding the Fourth Proportional to 9,439.43, 13,026.46 and 5,190.76

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Solution

The fourth proportional to 9,439.43, 13,026.46 and 5,190.76 is: 7,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.43 : 13,026.46 = 5,190.76 : x
  2. Step 2: Convert to fraction form
    9,439.43/13,026.46 = 5,190.76/x
  3. Step 3: Cross multiply
    9,439.43x = 13,026.46 × 5,190.76
  4. Step 4: Simplify right side
    9,439.43x = 67,617,201.56
  5. Step 5: Solve for x
    x = 67,617,201.56/9,439.43
  6. Step 6: Final answer
    x = 7,163.28

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Half scale
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Double scale
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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.