Home / 9,998.07-13,797.37-5,521.80

Finding the Fourth Proportional to 9,998.07, 13,797.37 and 5,521.80

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Solution

The fourth proportional to 9,998.07, 13,797.37 and 5,521.80 is: 7,620.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.07 : 13,797.37 = 5,521.80 : x
  2. Step 2: Convert to fraction form
    9,998.07/13,797.37 = 5,521.80/x
  3. Step 3: Cross multiply
    9,998.07x = 13,797.37 × 5,521.80
  4. Step 4: Simplify right side
    9,998.07x = 76,186,376.31
  5. Step 5: Solve for x
    x = 76,186,376.31/9,998.07
  6. Step 6: Final answer
    x = 7,620.11

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Half scale
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Double scale
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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.