Home / 11,637.12-17,456.48-3,851.40

Finding the Fourth Proportional to 11,637.12, 17,456.48 and 3,851.40

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Solution

The fourth proportional to 11,637.12, 17,456.48 and 3,851.40 is: 5,777.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,637.12 : 17,456.48 = 3,851.40 : x
  2. Step 2: Convert to fraction form
    11,637.12/17,456.48 = 3,851.40/x
  3. Step 3: Cross multiply
    11,637.12x = 17,456.48 × 3,851.40
  4. Step 4: Simplify right side
    11,637.12x = 67,231,809.42
  5. Step 5: Solve for x
    x = 67,231,809.42/11,637.12
  6. Step 6: Final answer
    x = 5,777.36

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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.