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Finding the Fourth Proportional to 9,350.60, 12,905.43 and 8,930.21

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Solution

The fourth proportional to 9,350.60, 12,905.43 and 8,930.21 is: 12,325.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.60 : 12,905.43 = 8,930.21 : x
  2. Step 2: Convert to fraction form
    9,350.60/12,905.43 = 8,930.21/x
  3. Step 3: Cross multiply
    9,350.60x = 12,905.43 × 8,930.21
  4. Step 4: Simplify right side
    9,350.60x = 115,248,102.02
  5. Step 5: Solve for x
    x = 115,248,102.02/9,350.60
  6. Step 6: Final answer
    x = 12,325.22

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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.