Home / 13,729.91-20,582.51-6,330.56

Finding the Fourth Proportional to 13,729.91, 20,582.51 and 6,330.56

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Solution

The fourth proportional to 13,729.91, 20,582.51 and 6,330.56 is: 9,490.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.91 : 20,582.51 = 6,330.56 : x
  2. Step 2: Convert to fraction form
    13,729.91/20,582.51 = 6,330.56/x
  3. Step 3: Cross multiply
    13,729.91x = 20,582.51 × 6,330.56
  4. Step 4: Simplify right side
    13,729.91x = 130,298,679.94
  5. Step 5: Solve for x
    x = 130,298,679.94/13,729.91
  6. Step 6: Final answer
    x = 9,490.14

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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.