Home / 14,016.72-21,025.20-8,169.60

Finding the Fourth Proportional to 14,016.72, 21,025.20 and 8,169.60

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Solution

The fourth proportional to 14,016.72, 21,025.20 and 8,169.60 is: 12,254.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,016.72 : 21,025.20 = 8,169.60 : x
  2. Step 2: Convert to fraction form
    14,016.72/21,025.20 = 8,169.60/x
  3. Step 3: Cross multiply
    14,016.72x = 21,025.20 × 8,169.60
  4. Step 4: Simplify right side
    14,016.72x = 171,767,473.92
  5. Step 5: Solve for x
    x = 171,767,473.92/14,016.72
  6. Step 6: Final answer
    x = 12,254.47

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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.