Home / 11,854.72-17,782.20-3,089.68

Finding the Fourth Proportional to 11,854.72, 17,782.20 and 3,089.68

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Solution

The fourth proportional to 11,854.72, 17,782.20 and 3,089.68 is: 4,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854.72 : 17,782.20 = 3,089.68 : x
  2. Step 2: Convert to fraction form
    11,854.72/17,782.20 = 3,089.68/x
  3. Step 3: Cross multiply
    11,854.72x = 17,782.20 × 3,089.68
  4. Step 4: Simplify right side
    11,854.72x = 54,941,307.70
  5. Step 5: Solve for x
    x = 54,941,307.70/11,854.72
  6. Step 6: Final answer
    x = 4,634.55

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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.