Home / 8,005.85-11,039.46-5,615.04

Finding the Fourth Proportional to 8,005.85, 11,039.46 and 5,615.04

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Solution

The fourth proportional to 8,005.85, 11,039.46 and 5,615.04 is: 7,742.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,005.85 : 11,039.46 = 5,615.04 : x
  2. Step 2: Convert to fraction form
    8,005.85/11,039.46 = 5,615.04/x
  3. Step 3: Cross multiply
    8,005.85x = 11,039.46 × 5,615.04
  4. Step 4: Simplify right side
    8,005.85x = 61,987,009.48
  5. Step 5: Solve for x
    x = 61,987,009.48/8,005.85
  6. Step 6: Final answer
    x = 7,742.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.