Home / 7,388.60-10,195.54-5,155.28

Finding the Fourth Proportional to 7,388.60, 10,195.54 and 5,155.28

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Solution

The fourth proportional to 7,388.60, 10,195.54 and 5,155.28 is: 7,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.60 : 10,195.54 = 5,155.28 : x
  2. Step 2: Convert to fraction form
    7,388.60/10,195.54 = 5,155.28/x
  3. Step 3: Cross multiply
    7,388.60x = 10,195.54 × 5,155.28
  4. Step 4: Simplify right side
    7,388.60x = 52,560,857.15
  5. Step 5: Solve for x
    x = 52,560,857.15/7,388.60
  6. Step 6: Final answer
    x = 7,113.78

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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.