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Finding the Fourth Proportional to 6,763.60, 9,333.28 and 5,171.32

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Solution

The fourth proportional to 6,763.60, 9,333.28 and 5,171.32 is: 7,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,763.60 : 9,333.28 = 5,171.32 : x
  2. Step 2: Convert to fraction form
    6,763.60/9,333.28 = 5,171.32/x
  3. Step 3: Cross multiply
    6,763.60x = 9,333.28 × 5,171.32
  4. Step 4: Simplify right side
    6,763.60x = 48,265,377.53
  5. Step 5: Solve for x
    x = 48,265,377.53/6,763.60
  6. Step 6: Final answer
    x = 7,136.05

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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.