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Finding the Fourth Proportional to 8,256.60, 11,392.90 and 4,719.13

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Solution

The fourth proportional to 8,256.60, 11,392.90 and 4,719.13 is: 6,511.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.60 : 11,392.90 = 4,719.13 : x
  2. Step 2: Convert to fraction form
    8,256.60/11,392.90 = 4,719.13/x
  3. Step 3: Cross multiply
    8,256.60x = 11,392.90 × 4,719.13
  4. Step 4: Simplify right side
    8,256.60x = 53,764,576.18
  5. Step 5: Solve for x
    x = 53,764,576.18/8,256.60
  6. Step 6: Final answer
    x = 6,511.71

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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.