Home / 9,330.60-12,872.70-5,553.90

Finding the Fourth Proportional to 9,330.60, 12,872.70 and 5,553.90

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Solution

The fourth proportional to 9,330.60, 12,872.70 and 5,553.90 is: 7,662.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,330.60 : 12,872.70 = 5,553.90 : x
  2. Step 2: Convert to fraction form
    9,330.60/12,872.70 = 5,553.90/x
  3. Step 3: Cross multiply
    9,330.60x = 12,872.70 × 5,553.90
  4. Step 4: Simplify right side
    9,330.60x = 71,493,688.53
  5. Step 5: Solve for x
    x = 71,493,688.53/9,330.60
  6. Step 6: Final answer
    x = 7,662.28

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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.