Home / 13,240.75-19,861.12-4,922.86

Finding the Fourth Proportional to 13,240.75, 19,861.12 and 4,922.86

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Solution

The fourth proportional to 13,240.75, 19,861.12 and 4,922.86 is: 7,384.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.75 : 19,861.12 = 4,922.86 : x
  2. Step 2: Convert to fraction form
    13,240.75/19,861.12 = 4,922.86/x
  3. Step 3: Cross multiply
    13,240.75x = 19,861.12 × 4,922.86
  4. Step 4: Simplify right side
    13,240.75x = 97,773,520.79
  5. Step 5: Solve for x
    x = 97,773,520.79/13,240.75
  6. Step 6: Final answer
    x = 7,384.29

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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.