Home / 7,131.38-9,817.61-6,245.64

Finding the Fourth Proportional to 7,131.38, 9,817.61 and 6,245.64

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Solution

The fourth proportional to 7,131.38, 9,817.61 and 6,245.64 is: 8,598.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,131.38 : 9,817.61 = 6,245.64 : x
  2. Step 2: Convert to fraction form
    7,131.38/9,817.61 = 6,245.64/x
  3. Step 3: Cross multiply
    7,131.38x = 9,817.61 × 6,245.64
  4. Step 4: Simplify right side
    7,131.38x = 61,317,226.49
  5. Step 5: Solve for x
    x = 61,317,226.49/7,131.38
  6. Step 6: Final answer
    x = 8,598.23

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Half scale
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Double scale
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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.