Home / 13,245.93-19,868.90-3,384.86

Finding the Fourth Proportional to 13,245.93, 19,868.90 and 3,384.86

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Solution

The fourth proportional to 13,245.93, 19,868.90 and 3,384.86 is: 5,077.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,245.93 : 19,868.90 = 3,384.86 : x
  2. Step 2: Convert to fraction form
    13,245.93/19,868.90 = 3,384.86/x
  3. Step 3: Cross multiply
    13,245.93x = 19,868.90 × 3,384.86
  4. Step 4: Simplify right side
    13,245.93x = 67,253,328.59
  5. Step 5: Solve for x
    x = 67,253,328.59/13,245.93
  6. Step 6: Final answer
    x = 5,077.28

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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.