Home / 19,385.40-29,082.51-6,906.75

Finding the Fourth Proportional to 19,385.40, 29,082.51 and 6,906.75

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Solution

The fourth proportional to 19,385.40, 29,082.51 and 6,906.75 is: 10,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.40 : 29,082.51 = 6,906.75 : x
  2. Step 2: Convert to fraction form
    19,385.40/29,082.51 = 6,906.75/x
  3. Step 3: Cross multiply
    19,385.40x = 29,082.51 × 6,906.75
  4. Step 4: Simplify right side
    19,385.40x = 200,865,625.94
  5. Step 5: Solve for x
    x = 200,865,625.94/19,385.40
  6. Step 6: Final answer
    x = 10,361.70

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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.