Home / 14,217.90-19,619.10-8,247.36

Finding the Fourth Proportional to 14,217.90, 19,619.10 and 8,247.36

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Solution

The fourth proportional to 14,217.90, 19,619.10 and 8,247.36 is: 11,380.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,217.90 : 19,619.10 = 8,247.36 : x
  2. Step 2: Convert to fraction form
    14,217.90/19,619.10 = 8,247.36/x
  3. Step 3: Cross multiply
    14,217.90x = 19,619.10 × 8,247.36
  4. Step 4: Simplify right side
    14,217.90x = 161,805,780.58
  5. Step 5: Solve for x
    x = 161,805,780.58/14,217.90
  6. Step 6: Final answer
    x = 11,380.43

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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.