Home / 9,439.62-13,026.41-5,190.69

Finding the Fourth Proportional to 9,439.62, 13,026.41 and 5,190.69

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Solution

The fourth proportional to 9,439.62, 13,026.41 and 5,190.69 is: 7,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.62 : 13,026.41 = 5,190.69 : x
  2. Step 2: Convert to fraction form
    9,439.62/13,026.41 = 5,190.69/x
  3. Step 3: Cross multiply
    9,439.62x = 13,026.41 × 5,190.69
  4. Step 4: Simplify right side
    9,439.62x = 67,615,973.97
  5. Step 5: Solve for x
    x = 67,615,973.97/9,439.62
  6. Step 6: Final answer
    x = 7,163.00

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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.