Home / 13,379.47-20,071.52-4,495.66

Finding the Fourth Proportional to 13,379.47, 20,071.52 and 4,495.66

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Solution

The fourth proportional to 13,379.47, 20,071.52 and 4,495.66 is: 6,744.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.47 : 20,071.52 = 4,495.66 : x
  2. Step 2: Convert to fraction form
    13,379.47/20,071.52 = 4,495.66/x
  3. Step 3: Cross multiply
    13,379.47x = 20,071.52 × 4,495.66
  4. Step 4: Simplify right side
    13,379.47x = 90,234,772.77
  5. Step 5: Solve for x
    x = 90,234,772.77/13,379.47
  6. Step 6: Final answer
    x = 6,744.27

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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.