Home / 11,388.45-17,077.64-5,148.21

Finding the Fourth Proportional to 11,388.45, 17,077.64 and 5,148.21

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Solution

The fourth proportional to 11,388.45, 17,077.64 and 5,148.21 is: 7,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,388.45 : 17,077.64 = 5,148.21 : x
  2. Step 2: Convert to fraction form
    11,388.45/17,077.64 = 5,148.21/x
  3. Step 3: Cross multiply
    11,388.45x = 17,077.64 × 5,148.21
  4. Step 4: Simplify right side
    11,388.45x = 87,919,277.02
  5. Step 5: Solve for x
    x = 87,919,277.02/11,388.45
  6. Step 6: Final answer
    x = 7,720.04

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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.