Home / 14,716.84-20,311.08-8,429.22

Finding the Fourth Proportional to 14,716.84, 20,311.08 and 8,429.22

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Solution

The fourth proportional to 14,716.84, 20,311.08 and 8,429.22 is: 11,633.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,716.84 : 20,311.08 = 8,429.22 : x
  2. Step 2: Convert to fraction form
    14,716.84/20,311.08 = 8,429.22/x
  3. Step 3: Cross multiply
    14,716.84x = 20,311.08 × 8,429.22
  4. Step 4: Simplify right side
    14,716.84x = 171,206,561.76
  5. Step 5: Solve for x
    x = 171,206,561.76/14,716.84
  6. Step 6: Final answer
    x = 11,633.38

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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.