Home / 9,821.97-13,554.11-5,345.61

Finding the Fourth Proportional to 9,821.97, 13,554.11 and 5,345.61

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Solution

The fourth proportional to 9,821.97, 13,554.11 and 5,345.61 is: 7,376.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821.97 : 13,554.11 = 5,345.61 : x
  2. Step 2: Convert to fraction form
    9,821.97/13,554.11 = 5,345.61/x
  3. Step 3: Cross multiply
    9,821.97x = 13,554.11 × 5,345.61
  4. Step 4: Simplify right side
    9,821.97x = 72,454,959.23
  5. Step 5: Solve for x
    x = 72,454,959.23/9,821.97
  6. Step 6: Final answer
    x = 7,376.83

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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.