Home / 18,467.05-25,478.52-10,913.60

Finding the Fourth Proportional to 18,467.05, 25,478.52 and 10,913.60

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Solution

The fourth proportional to 18,467.05, 25,478.52 and 10,913.60 is: 15,057.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,467.05 : 25,478.52 = 10,913.60 : x
  2. Step 2: Convert to fraction form
    18,467.05/25,478.52 = 10,913.60/x
  3. Step 3: Cross multiply
    18,467.05x = 25,478.52 × 10,913.60
  4. Step 4: Simplify right side
    18,467.05x = 278,062,375.87
  5. Step 5: Solve for x
    x = 278,062,375.87/18,467.05
  6. Step 6: Final answer
    x = 15,057.22

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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.