Home / 19,414.46-29,109.93-12,665.09

Finding the Fourth Proportional to 19,414.46, 29,109.93 and 12,665.09

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Solution

The fourth proportional to 19,414.46, 29,109.93 and 12,665.09 is: 18,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,414.46 : 29,109.93 = 12,665.09 : x
  2. Step 2: Convert to fraction form
    19,414.46/29,109.93 = 12,665.09/x
  3. Step 3: Cross multiply
    19,414.46x = 29,109.93 × 12,665.09
  4. Step 4: Simplify right side
    19,414.46x = 368,679,737.79
  5. Step 5: Solve for x
    x = 368,679,737.79/19,414.46
  6. Step 6: Final answer
    x = 18,989.96

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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.