Home / 12,716.53-17,559.23-8,247.87

Finding the Fourth Proportional to 12,716.53, 17,559.23 and 8,247.87

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Solution

The fourth proportional to 12,716.53, 17,559.23 and 8,247.87 is: 11,388.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,716.53 : 17,559.23 = 8,247.87 : x
  2. Step 2: Convert to fraction form
    12,716.53/17,559.23 = 8,247.87/x
  3. Step 3: Cross multiply
    12,716.53x = 17,559.23 × 8,247.87
  4. Step 4: Simplify right side
    12,716.53x = 144,826,246.34
  5. Step 5: Solve for x
    x = 144,826,246.34/12,716.53
  6. Step 6: Final answer
    x = 11,388.82

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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.