Home / 11,392.48-17,090.79-5,155.44

Finding the Fourth Proportional to 11,392.48, 17,090.79 and 5,155.44

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Solution

The fourth proportional to 11,392.48, 17,090.79 and 5,155.44 is: 7,734.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.48 : 17,090.79 = 5,155.44 : x
  2. Step 2: Convert to fraction form
    11,392.48/17,090.79 = 5,155.44/x
  3. Step 3: Cross multiply
    11,392.48x = 17,090.79 × 5,155.44
  4. Step 4: Simplify right side
    11,392.48x = 88,110,542.40
  5. Step 5: Solve for x
    x = 88,110,542.40/11,392.48
  6. Step 6: Final answer
    x = 7,734.10

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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.