Home / 8,721.26-12,035.56-4,742.60

Finding the Fourth Proportional to 8,721.26, 12,035.56 and 4,742.60

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Solution

The fourth proportional to 8,721.26, 12,035.56 and 4,742.60 is: 6,544.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.26 : 12,035.56 = 4,742.60 : x
  2. Step 2: Convert to fraction form
    8,721.26/12,035.56 = 4,742.60/x
  3. Step 3: Cross multiply
    8,721.26x = 12,035.56 × 4,742.60
  4. Step 4: Simplify right side
    8,721.26x = 57,079,846.86
  5. Step 5: Solve for x
    x = 57,079,846.86/8,721.26
  6. Step 6: Final answer
    x = 6,544.91

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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.