Home / 9,329.64-12,874.32-5,137.89

Finding the Fourth Proportional to 9,329.64, 12,874.32 and 5,137.89

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Solution

The fourth proportional to 9,329.64, 12,874.32 and 5,137.89 is: 7,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,329.64 : 12,874.32 = 5,137.89 : x
  2. Step 2: Convert to fraction form
    9,329.64/12,874.32 = 5,137.89/x
  3. Step 3: Cross multiply
    9,329.64x = 12,874.32 × 5,137.89
  4. Step 4: Simplify right side
    9,329.64x = 66,146,839.98
  5. Step 5: Solve for x
    x = 66,146,839.98/9,329.64
  6. Step 6: Final answer
    x = 7,089.97

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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.