Home / 9,821.92-13,553.85-5,345.68

Finding the Fourth Proportional to 9,821.92, 13,553.85 and 5,345.68

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Solution

The fourth proportional to 9,821.92, 13,553.85 and 5,345.68 is: 7,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.92 : 13,553.85 = 5,345.68 : x
  2. Step 2: Convert to fraction form
    9,821.92/13,553.85 = 5,345.68/x
  3. Step 3: Cross multiply
    9,821.92x = 13,553.85 × 5,345.68
  4. Step 4: Simplify right side
    9,821.92x = 72,454,544.87
  5. Step 5: Solve for x
    x = 72,454,544.87/9,821.92
  6. Step 6: Final answer
    x = 7,376.82

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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.