Home / 9,309.09-12,845.46-5,329.96

Finding the Fourth Proportional to 9,309.09, 12,845.46 and 5,329.96

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Solution

The fourth proportional to 9,309.09, 12,845.46 and 5,329.96 is: 7,354.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,309.09 : 12,845.46 = 5,329.96 : x
  2. Step 2: Convert to fraction form
    9,309.09/12,845.46 = 5,329.96/x
  3. Step 3: Cross multiply
    9,309.09x = 12,845.46 × 5,329.96
  4. Step 4: Simplify right side
    9,309.09x = 68,465,787.98
  5. Step 5: Solve for x
    x = 68,465,787.98/9,309.09
  6. Step 6: Final answer
    x = 7,354.72

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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.