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Finding the Fourth Proportional to 6,555.30, 9,809.85 and 5,371.08

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Solution

The fourth proportional to 6,555.30, 9,809.85 and 5,371.08 is: 8,037.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,555.30 : 9,809.85 = 5,371.08 : x
  2. Step 2: Convert to fraction form
    6,555.30/9,809.85 = 5,371.08/x
  3. Step 3: Cross multiply
    6,555.30x = 9,809.85 × 5,371.08
  4. Step 4: Simplify right side
    6,555.30x = 52,689,489.14
  5. Step 5: Solve for x
    x = 52,689,489.14/6,555.30
  6. Step 6: Final answer
    x = 8,037.69

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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.