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Finding the Fourth Proportional to 11,400.90, 17,090.90 and 4,001.32

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Solution

The fourth proportional to 11,400.90, 17,090.90 and 4,001.32 is: 5,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.90 : 17,090.90 = 4,001.32 : x
  2. Step 2: Convert to fraction form
    11,400.90/17,090.90 = 4,001.32/x
  3. Step 3: Cross multiply
    11,400.90x = 17,090.90 × 4,001.32
  4. Step 4: Simplify right side
    11,400.90x = 68,386,159.99
  5. Step 5: Solve for x
    x = 68,386,159.99/11,400.90
  6. Step 6: Final answer
    x = 5,998.31

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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.