Home / 13,220.43-19,832.94-4,455.42

Finding the Fourth Proportional to 13,220.43, 19,832.94 and 4,455.42

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Solution

The fourth proportional to 13,220.43, 19,832.94 and 4,455.42 is: 6,683.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.43 : 19,832.94 = 4,455.42 : x
  2. Step 2: Convert to fraction form
    13,220.43/19,832.94 = 4,455.42/x
  3. Step 3: Cross multiply
    13,220.43x = 19,832.94 × 4,455.42
  4. Step 4: Simplify right side
    13,220.43x = 88,364,077.53
  5. Step 5: Solve for x
    x = 88,364,077.53/13,220.43
  6. Step 6: Final answer
    x = 6,683.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.