Home / 14,706.36-20,294.82-8,418.78

Finding the Fourth Proportional to 14,706.36, 20,294.82 and 8,418.78

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Solution

The fourth proportional to 14,706.36, 20,294.82 and 8,418.78 is: 11,617.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,706.36 : 20,294.82 = 8,418.78 : x
  2. Step 2: Convert to fraction form
    14,706.36/20,294.82 = 8,418.78/x
  3. Step 3: Cross multiply
    14,706.36x = 20,294.82 × 8,418.78
  4. Step 4: Simplify right side
    14,706.36x = 170,857,624.72
  5. Step 5: Solve for x
    x = 170,857,624.72/14,706.36
  6. Step 6: Final answer
    x = 11,617.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.