Home / 11,581.62-15,976.74-7,325.51

Finding the Fourth Proportional to 11,581.62, 15,976.74 and 7,325.51

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Solution

The fourth proportional to 11,581.62, 15,976.74 and 7,325.51 is: 10,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,581.62 : 15,976.74 = 7,325.51 : x
  2. Step 2: Convert to fraction form
    11,581.62/15,976.74 = 7,325.51/x
  3. Step 3: Cross multiply
    11,581.62x = 15,976.74 × 7,325.51
  4. Step 4: Simplify right side
    11,581.62x = 117,037,716.22
  5. Step 5: Solve for x
    x = 117,037,716.22/11,581.62
  6. Step 6: Final answer
    x = 10,105.47

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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.