Home / 8,716.14-12,028.86-5,314.55

Finding the Fourth Proportional to 8,716.14, 12,028.86 and 5,314.55

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Solution

The fourth proportional to 8,716.14, 12,028.86 and 5,314.55 is: 7,334.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.14 : 12,028.86 = 5,314.55 : x
  2. Step 2: Convert to fraction form
    8,716.14/12,028.86 = 5,314.55/x
  3. Step 3: Cross multiply
    8,716.14x = 12,028.86 × 5,314.55
  4. Step 4: Simplify right side
    8,716.14x = 63,927,917.77
  5. Step 5: Solve for x
    x = 63,927,917.77/8,716.14
  6. Step 6: Final answer
    x = 7,334.43

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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.