Home / 13,272.58-19,911.72-4,387.44

Finding the Fourth Proportional to 13,272.58, 19,911.72 and 4,387.44

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Solution

The fourth proportional to 13,272.58, 19,911.72 and 4,387.44 is: 6,582.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.58 : 19,911.72 = 4,387.44 : x
  2. Step 2: Convert to fraction form
    13,272.58/19,911.72 = 4,387.44/x
  3. Step 3: Cross multiply
    13,272.58x = 19,911.72 × 4,387.44
  4. Step 4: Simplify right side
    13,272.58x = 87,361,511.92
  5. Step 5: Solve for x
    x = 87,361,511.92/13,272.58
  6. Step 6: Final answer
    x = 6,582.10

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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.