Home / 8,743.68-13,101.12-5,270.40

Finding the Fourth Proportional to 8,743.68, 13,101.12 and 5,270.40

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Solution

The fourth proportional to 8,743.68, 13,101.12 and 5,270.40 is: 7,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,743.68 : 13,101.12 = 5,270.40 : x
  2. Step 2: Convert to fraction form
    8,743.68/13,101.12 = 5,270.40/x
  3. Step 3: Cross multiply
    8,743.68x = 13,101.12 × 5,270.40
  4. Step 4: Simplify right side
    8,743.68x = 69,048,142.85
  5. Step 5: Solve for x
    x = 69,048,142.85/8,743.68
  6. Step 6: Final answer
    x = 7,896.92

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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.