Home / 6,620.30-9,931.36-5,398.34

Finding the Fourth Proportional to 6,620.30, 9,931.36 and 5,398.34

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Solution

The fourth proportional to 6,620.30, 9,931.36 and 5,398.34 is: 8,098.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.30 : 9,931.36 = 5,398.34 : x
  2. Step 2: Convert to fraction form
    6,620.30/9,931.36 = 5,398.34/x
  3. Step 3: Cross multiply
    6,620.30x = 9,931.36 × 5,398.34
  4. Step 4: Simplify right side
    6,620.30x = 53,612,857.94
  5. Step 5: Solve for x
    x = 53,612,857.94/6,620.30
  6. Step 6: Final answer
    x = 8,098.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.