Home / 14,078.46-21,109.90-9,641.20

Finding the Fourth Proportional to 14,078.46, 21,109.90 and 9,641.20

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Solution

The fourth proportional to 14,078.46, 21,109.90 and 9,641.20 is: 14,456.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,078.46 : 21,109.90 = 9,641.20 : x
  2. Step 2: Convert to fraction form
    14,078.46/21,109.90 = 9,641.20/x
  3. Step 3: Cross multiply
    14,078.46x = 21,109.90 × 9,641.20
  4. Step 4: Simplify right side
    14,078.46x = 203,524,767.88
  5. Step 5: Solve for x
    x = 203,524,767.88/14,078.46
  6. Step 6: Final answer
    x = 14,456.47

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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.