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Finding the Fourth Proportional to 12,432.64, 17,157.39 and 7,054.97

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Solution

The fourth proportional to 12,432.64, 17,157.39 and 7,054.97 is: 9,736.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432.64 : 17,157.39 = 7,054.97 : x
  2. Step 2: Convert to fraction form
    12,432.64/17,157.39 = 7,054.97/x
  3. Step 3: Cross multiply
    12,432.64x = 17,157.39 × 7,054.97
  4. Step 4: Simplify right side
    12,432.64x = 121,044,963.78
  5. Step 5: Solve for x
    x = 121,044,963.78/12,432.64
  6. Step 6: Final answer
    x = 9,736.06

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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.