Home / 9,439.27-13,026.36-5,190.51

Finding the Fourth Proportional to 9,439.27, 13,026.36 and 5,190.51

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Solution

The fourth proportional to 9,439.27, 13,026.36 and 5,190.51 is: 7,163.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.27 : 13,026.36 = 5,190.51 : x
  2. Step 2: Convert to fraction form
    9,439.27/13,026.36 = 5,190.51/x
  3. Step 3: Cross multiply
    9,439.27x = 13,026.36 × 5,190.51
  4. Step 4: Simplify right side
    9,439.27x = 67,613,451.84
  5. Step 5: Solve for x
    x = 67,613,451.84/9,439.27
  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.