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Finding the Fourth Proportional to 11,361.52, 15,681.04 and 6,393.52

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Solution

The fourth proportional to 11,361.52, 15,681.04 and 6,393.52 is: 8,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.52 : 15,681.04 = 6,393.52 : x
  2. Step 2: Convert to fraction form
    11,361.52/15,681.04 = 6,393.52/x
  3. Step 3: Cross multiply
    11,361.52x = 15,681.04 × 6,393.52
  4. Step 4: Simplify right side
    11,361.52x = 100,257,042.86
  5. Step 5: Solve for x
    x = 100,257,042.86/11,361.52
  6. Step 6: Final answer
    x = 8,824.26

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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.