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Finding the Fourth Proportional to 6,547.77, 9,821.66 and 5,391.09

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Solution

The fourth proportional to 6,547.77, 9,821.66 and 5,391.09 is: 8,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,547.77 : 9,821.66 = 5,391.09 : x
  2. Step 2: Convert to fraction form
    6,547.77/9,821.66 = 5,391.09/x
  3. Step 3: Cross multiply
    6,547.77x = 9,821.66 × 5,391.09
  4. Step 4: Simplify right side
    6,547.77x = 52,949,426.05
  5. Step 5: Solve for x
    x = 52,949,426.05/6,547.77
  6. Step 6: Final answer
    x = 8,086.64

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Similar ratio
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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.