Home / 8,911.53-13,365.72-2,987.82

Finding the Fourth Proportional to 8,911.53, 13,365.72 and 2,987.82

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Solution

The fourth proportional to 8,911.53, 13,365.72 and 2,987.82 is: 4,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.53 : 13,365.72 = 2,987.82 : x
  2. Step 2: Convert to fraction form
    8,911.53/13,365.72 = 2,987.82/x
  3. Step 3: Cross multiply
    8,911.53x = 13,365.72 × 2,987.82
  4. Step 4: Simplify right side
    8,911.53x = 39,934,365.53
  5. Step 5: Solve for x
    x = 39,934,365.53/8,911.53
  6. Step 6: Final answer
    x = 4,481.20

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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.