Home / 9,516.38-13,120.01-7,808.63

Finding the Fourth Proportional to 9,516.38, 13,120.01 and 7,808.63

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Solution

The fourth proportional to 9,516.38, 13,120.01 and 7,808.63 is: 10,765.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,516.38 : 13,120.01 = 7,808.63 : x
  2. Step 2: Convert to fraction form
    9,516.38/13,120.01 = 7,808.63/x
  3. Step 3: Cross multiply
    9,516.38x = 13,120.01 × 7,808.63
  4. Step 4: Simplify right side
    9,516.38x = 102,449,199.04
  5. Step 5: Solve for x
    x = 102,449,199.04/9,516.38
  6. Step 6: Final answer
    x = 10,765.57

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Half scale
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Double scale
Find fourth proportional to 9,517.38, 13,121.38 and 7,809.63
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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.