Home / 14,688.20-20,269.72-7,973.82

Finding the Fourth Proportional to 14,688.20, 20,269.72 and 7,973.82

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Solution

The fourth proportional to 14,688.20, 20,269.72 and 7,973.82 is: 11,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,688.20 : 20,269.72 = 7,973.82 : x
  2. Step 2: Convert to fraction form
    14,688.20/20,269.72 = 7,973.82/x
  3. Step 3: Cross multiply
    14,688.20x = 20,269.72 × 7,973.82
  4. Step 4: Simplify right side
    14,688.20x = 161,627,098.73
  5. Step 5: Solve for x
    x = 161,627,098.73/14,688.20
  6. Step 6: Final answer
    x = 11,003.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.