Home / 8,080.76-11,157.72-6,309.26

Finding the Fourth Proportional to 8,080.76, 11,157.72 and 6,309.26

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Solution

The fourth proportional to 8,080.76, 11,157.72 and 6,309.26 is: 8,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,080.76 : 11,157.72 = 6,309.26 : x
  2. Step 2: Convert to fraction form
    8,080.76/11,157.72 = 6,309.26/x
  3. Step 3: Cross multiply
    8,080.76x = 11,157.72 × 6,309.26
  4. Step 4: Simplify right side
    8,080.76x = 70,396,956.49
  5. Step 5: Solve for x
    x = 70,396,956.49/8,080.76
  6. Step 6: Final answer
    x = 8,711.68

Related Problems

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Half scale
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Double scale
Find fourth proportional to 8,081.76, 11,159.10 and 6,310.26
Similar ratio
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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.