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Finding the Fourth Proportional to 9,800.18, 13,523.86 and 5,821.20

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Solution

The fourth proportional to 9,800.18, 13,523.86 and 5,821.20 is: 8,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,800.18 : 13,523.86 = 5,821.20 : x
  2. Step 2: Convert to fraction form
    9,800.18/13,523.86 = 5,821.20/x
  3. Step 3: Cross multiply
    9,800.18x = 13,523.86 × 5,821.20
  4. Step 4: Simplify right side
    9,800.18x = 78,725,093.83
  5. Step 5: Solve for x
    x = 78,725,093.83/9,800.18
  6. Step 6: Final answer
    x = 8,033.03

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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.