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Finding the Fourth Proportional to 8,886.32, 13,321.17 and 3,953.28

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Solution

The fourth proportional to 8,886.32, 13,321.17 and 3,953.28 is: 5,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.32 : 13,321.17 = 3,953.28 : x
  2. Step 2: Convert to fraction form
    8,886.32/13,321.17 = 3,953.28/x
  3. Step 3: Cross multiply
    8,886.32x = 13,321.17 × 3,953.28
  4. Step 4: Simplify right side
    8,886.32x = 52,662,314.94
  5. Step 5: Solve for x
    x = 52,662,314.94/8,886.32
  6. Step 6: Final answer
    x = 5,926.23

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1.5x scale

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.