Home / 8,643.55-11,926.42-5,107.36

Finding the Fourth Proportional to 8,643.55, 11,926.42 and 5,107.36

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Solution

The fourth proportional to 8,643.55, 11,926.42 and 5,107.36 is: 7,047.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.55 : 11,926.42 = 5,107.36 : x
  2. Step 2: Convert to fraction form
    8,643.55/11,926.42 = 5,107.36/x
  3. Step 3: Cross multiply
    8,643.55x = 11,926.42 × 5,107.36
  4. Step 4: Simplify right side
    8,643.55x = 60,912,520.45
  5. Step 5: Solve for x
    x = 60,912,520.45/8,643.55
  6. Step 6: Final answer
    x = 7,047.16

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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.