Home / 8,088.05-11,155.47-7,142.16

Finding the Fourth Proportional to 8,088.05, 11,155.47 and 7,142.16

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Solution

The fourth proportional to 8,088.05, 11,155.47 and 7,142.16 is: 9,850.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,088.05 : 11,155.47 = 7,142.16 : x
  2. Step 2: Convert to fraction form
    8,088.05/11,155.47 = 7,142.16/x
  3. Step 3: Cross multiply
    8,088.05x = 11,155.47 × 7,142.16
  4. Step 4: Simplify right side
    8,088.05x = 79,674,151.62
  5. Step 5: Solve for x
    x = 79,674,151.62/8,088.05
  6. Step 6: Final answer
    x = 9,850.85

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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.