Home / 13,905.26-20,860.16-4,542.56

Finding the Fourth Proportional to 13,905.26, 20,860.16 and 4,542.56

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Solution

The fourth proportional to 13,905.26, 20,860.16 and 4,542.56 is: 6,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.26 : 20,860.16 = 4,542.56 : x
  2. Step 2: Convert to fraction form
    13,905.26/20,860.16 = 4,542.56/x
  3. Step 3: Cross multiply
    13,905.26x = 20,860.16 × 4,542.56
  4. Step 4: Simplify right side
    13,905.26x = 94,758,424.11
  5. Step 5: Solve for x
    x = 94,758,424.11/13,905.26
  6. Step 6: Final answer
    x = 6,814.58

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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.