Home / 14,107.70-21,162.77-13,915.73

Finding the Fourth Proportional to 14,107.70, 21,162.77 and 13,915.73

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Solution

The fourth proportional to 14,107.70, 21,162.77 and 13,915.73 is: 20,874.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,107.70 : 21,162.77 = 13,915.73 : x
  2. Step 2: Convert to fraction form
    14,107.70/21,162.77 = 13,915.73/x
  3. Step 3: Cross multiply
    14,107.70x = 21,162.77 × 13,915.73
  4. Step 4: Simplify right side
    14,107.70x = 294,495,217.98
  5. Step 5: Solve for x
    x = 294,495,217.98/14,107.70
  6. Step 6: Final answer
    x = 20,874.79

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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.