Home / 8,088.14-11,135.74-7,911.68

Finding the Fourth Proportional to 8,088.14, 11,135.74 and 7,911.68

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Solution

The fourth proportional to 8,088.14, 11,135.74 and 7,911.68 is: 10,892.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.14 : 11,135.74 = 7,911.68 : x
  2. Step 2: Convert to fraction form
    8,088.14/11,135.74 = 7,911.68/x
  3. Step 3: Cross multiply
    8,088.14x = 11,135.74 × 7,911.68
  4. Step 4: Simplify right side
    8,088.14x = 88,102,316.21
  5. Step 5: Solve for x
    x = 88,102,316.21/8,088.14
  6. Step 6: Final answer
    x = 10,892.78

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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.