Home / 13,717.80-20,564.38-4,950.68

Finding the Fourth Proportional to 13,717.80, 20,564.38 and 4,950.68

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Solution

The fourth proportional to 13,717.80, 20,564.38 and 4,950.68 is: 7,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,717.80 : 20,564.38 = 4,950.68 : x
  2. Step 2: Convert to fraction form
    13,717.80/20,564.38 = 4,950.68/x
  3. Step 3: Cross multiply
    13,717.80x = 20,564.38 × 4,950.68
  4. Step 4: Simplify right side
    13,717.80x = 101,807,664.78
  5. Step 5: Solve for x
    x = 101,807,664.78/13,717.80
  6. Step 6: Final answer
    x = 7,421.57

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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.