Home / 8,791.48-12,132.26-4,812.64

Finding the Fourth Proportional to 8,791.48, 12,132.26 and 4,812.64

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Solution

The fourth proportional to 8,791.48, 12,132.26 and 4,812.64 is: 6,641.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.48 : 12,132.26 = 4,812.64 : x
  2. Step 2: Convert to fraction form
    8,791.48/12,132.26 = 4,812.64/x
  3. Step 3: Cross multiply
    8,791.48x = 12,132.26 × 4,812.64
  4. Step 4: Simplify right side
    8,791.48x = 58,388,199.77
  5. Step 5: Solve for x
    x = 58,388,199.77/8,791.48
  6. Step 6: Final answer
    x = 6,641.45

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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.