Home / 13,149.64-19,724.88-4,385.44

Finding the Fourth Proportional to 13,149.64, 19,724.88 and 4,385.44

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Solution

The fourth proportional to 13,149.64, 19,724.88 and 4,385.44 is: 6,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149.64 : 19,724.88 = 4,385.44 : x
  2. Step 2: Convert to fraction form
    13,149.64/19,724.88 = 4,385.44/x
  3. Step 3: Cross multiply
    13,149.64x = 19,724.88 × 4,385.44
  4. Step 4: Simplify right side
    13,149.64x = 86,502,277.75
  5. Step 5: Solve for x
    x = 86,502,277.75/13,149.64
  6. Step 6: Final answer
    x = 6,578.30

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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.