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Finding the Fourth Proportional to 7,429.52, 11,091.33 and 7,169.92

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Solution

The fourth proportional to 7,429.52, 11,091.33 and 7,169.92 is: 10,703.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,429.52 : 11,091.33 = 7,169.92 : x
  2. Step 2: Convert to fraction form
    7,429.52/11,091.33 = 7,169.92/x
  3. Step 3: Cross multiply
    7,429.52x = 11,091.33 × 7,169.92
  4. Step 4: Simplify right side
    7,429.52x = 79,523,921.07
  5. Step 5: Solve for x
    x = 79,523,921.07/7,429.52
  6. Step 6: Final answer
    x = 10,703.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.