Home / 14,768.20-20,381.32-8,396.79

Finding the Fourth Proportional to 14,768.20, 20,381.32 and 8,396.79

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Solution

The fourth proportional to 14,768.20, 20,381.32 and 8,396.79 is: 11,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,768.20 : 20,381.32 = 8,396.79 : x
  2. Step 2: Convert to fraction form
    14,768.20/20,381.32 = 8,396.79/x
  3. Step 3: Cross multiply
    14,768.20x = 20,381.32 × 8,396.79
  4. Step 4: Simplify right side
    14,768.20x = 171,137,562.06
  5. Step 5: Solve for x
    x = 171,137,562.06/14,768.20
  6. Step 6: Final answer
    x = 11,588.25

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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.