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Finding the Fourth Proportional to 8,203.15, 12,275.56 and 4,723.39

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Solution

The fourth proportional to 8,203.15, 12,275.56 and 4,723.39 is: 7,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,203.15 : 12,275.56 = 4,723.39 : x
  2. Step 2: Convert to fraction form
    8,203.15/12,275.56 = 4,723.39/x
  3. Step 3: Cross multiply
    8,203.15x = 12,275.56 × 4,723.39
  4. Step 4: Simplify right side
    8,203.15x = 57,982,257.35
  5. Step 5: Solve for x
    x = 57,982,257.35/8,203.15
  6. Step 6: Final answer
    x = 7,068.29

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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.