Home / 9,821.24-13,553.12-5,345.09

Finding the Fourth Proportional to 9,821.24, 13,553.12 and 5,345.09

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Solution

The fourth proportional to 9,821.24, 13,553.12 and 5,345.09 is: 7,376.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.24 : 13,553.12 = 5,345.09 : x
  2. Step 2: Convert to fraction form
    9,821.24/13,553.12 = 5,345.09/x
  3. Step 3: Cross multiply
    9,821.24x = 13,553.12 × 5,345.09
  4. Step 4: Simplify right side
    9,821.24x = 72,442,551.69
  5. Step 5: Solve for x
    x = 72,442,551.69/9,821.24
  6. Step 6: Final answer
    x = 7,376.11

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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.