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Finding the Fourth Proportional to 9,390.56, 12,943.98 and 6,364.73

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Solution

The fourth proportional to 9,390.56, 12,943.98 and 6,364.73 is: 8,773.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.56 : 12,943.98 = 6,364.73 : x
  2. Step 2: Convert to fraction form
    9,390.56/12,943.98 = 6,364.73/x
  3. Step 3: Cross multiply
    9,390.56x = 12,943.98 × 6,364.73
  4. Step 4: Simplify right side
    9,390.56x = 82,384,873.11
  5. Step 5: Solve for x
    x = 82,384,873.11/9,390.56
  6. Step 6: Final answer
    x = 8,773.16

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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.