Home / 14,122.62-21,158.12-6,612.41

Finding the Fourth Proportional to 14,122.62, 21,158.12 and 6,612.41

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Solution

The fourth proportional to 14,122.62, 21,158.12 and 6,612.41 is: 9,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,122.62 : 21,158.12 = 6,612.41 : x
  2. Step 2: Convert to fraction form
    14,122.62/21,158.12 = 6,612.41/x
  3. Step 3: Cross multiply
    14,122.62x = 21,158.12 × 6,612.41
  4. Step 4: Simplify right side
    14,122.62x = 139,906,025.42
  5. Step 5: Solve for x
    x = 139,906,025.42/14,122.62
  6. Step 6: Final answer
    x = 9,906.52

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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.