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Finding the Fourth Proportional to 7,329.88, 10,107.34 and 7,176.12

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Solution

The fourth proportional to 7,329.88, 10,107.34 and 7,176.12 is: 9,895.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,329.88 : 10,107.34 = 7,176.12 : x
  2. Step 2: Convert to fraction form
    7,329.88/10,107.34 = 7,176.12/x
  3. Step 3: Cross multiply
    7,329.88x = 10,107.34 × 7,176.12
  4. Step 4: Simplify right side
    7,329.88x = 72,531,484.72
  5. Step 5: Solve for x
    x = 72,531,484.72/7,329.88
  6. Step 6: Final answer
    x = 9,895.32

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Similar ratio
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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.