Home / 11,854.88-17,782.40-4,929.36

Finding the Fourth Proportional to 11,854.88, 17,782.40 and 4,929.36

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Solution

The fourth proportional to 11,854.88, 17,782.40 and 4,929.36 is: 7,394.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854.88 : 17,782.40 = 4,929.36 : x
  2. Step 2: Convert to fraction form
    11,854.88/17,782.40 = 4,929.36/x
  3. Step 3: Cross multiply
    11,854.88x = 17,782.40 × 4,929.36
  4. Step 4: Simplify right side
    11,854.88x = 87,655,851.26
  5. Step 5: Solve for x
    x = 87,655,851.26/11,854.88
  6. Step 6: Final answer
    x = 7,394.07

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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.