Home / 19,217.88-28,774.90-9,964.44

Finding the Fourth Proportional to 19,217.88, 28,774.90 and 9,964.44

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Solution

The fourth proportional to 19,217.88, 28,774.90 and 9,964.44 is: 14,919.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.88 : 28,774.90 = 9,964.44 : x
  2. Step 2: Convert to fraction form
    19,217.88/28,774.90 = 9,964.44/x
  3. Step 3: Cross multiply
    19,217.88x = 28,774.90 × 9,964.44
  4. Step 4: Simplify right side
    19,217.88x = 286,725,764.56
  5. Step 5: Solve for x
    x = 286,725,764.56/19,217.88
  6. Step 6: Final answer
    x = 14,919.74

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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.