Home / 13,311.35-19,962.90-4,424.78

Finding the Fourth Proportional to 13,311.35, 19,962.90 and 4,424.78

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Solution

The fourth proportional to 13,311.35, 19,962.90 and 4,424.78 is: 6,635.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.35 : 19,962.90 = 4,424.78 : x
  2. Step 2: Convert to fraction form
    13,311.35/19,962.90 = 4,424.78/x
  3. Step 3: Cross multiply
    13,311.35x = 19,962.90 × 4,424.78
  4. Step 4: Simplify right side
    13,311.35x = 88,331,440.66
  5. Step 5: Solve for x
    x = 88,331,440.66/13,311.35
  6. Step 6: Final answer
    x = 6,635.80

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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.