Home / 9,039.11-13,551.37-5,138.15

Finding the Fourth Proportional to 9,039.11, 13,551.37 and 5,138.15

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Solution

The fourth proportional to 9,039.11, 13,551.37 and 5,138.15 is: 7,703.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,039.11 : 13,551.37 = 5,138.15 : x
  2. Step 2: Convert to fraction form
    9,039.11/13,551.37 = 5,138.15/x
  3. Step 3: Cross multiply
    9,039.11x = 13,551.37 × 5,138.15
  4. Step 4: Simplify right side
    9,039.11x = 69,628,891.16
  5. Step 5: Solve for x
    x = 69,628,891.16/9,039.11
  6. Step 6: Final answer
    x = 7,703.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.