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Finding the Fourth Proportional to 8,716.14, 12,030.13 and 5,361.78

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Solution

The fourth proportional to 8,716.14, 12,030.13 and 5,361.78 is: 7,400.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.14 : 12,030.13 = 5,361.78 : x
  2. Step 2: Convert to fraction form
    8,716.14/12,030.13 = 5,361.78/x
  3. Step 3: Cross multiply
    8,716.14x = 12,030.13 × 5,361.78
  4. Step 4: Simplify right side
    8,716.14x = 64,502,910.43
  5. Step 5: Solve for x
    x = 64,502,910.43/8,716.14
  6. Step 6: Final answer
    x = 7,400.40

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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.