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Finding the Fourth Proportional to 6,455.80, 9,683.70 and 5,751.10

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Solution

The fourth proportional to 6,455.80, 9,683.70 and 5,751.10 is: 8,626.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,455.80 : 9,683.70 = 5,751.10 : x
  2. Step 2: Convert to fraction form
    6,455.80/9,683.70 = 5,751.10/x
  3. Step 3: Cross multiply
    6,455.80x = 9,683.70 × 5,751.10
  4. Step 4: Simplify right side
    6,455.80x = 55,691,927.07
  5. Step 5: Solve for x
    x = 55,691,927.07/6,455.80
  6. Step 6: Final answer
    x = 8,626.65

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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.