Home / 13,508.07-20,263.14-3,647.21

Finding the Fourth Proportional to 13,508.07, 20,263.14 and 3,647.21

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Solution

The fourth proportional to 13,508.07, 20,263.14 and 3,647.21 is: 5,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.07 : 20,263.14 = 3,647.21 : x
  2. Step 2: Convert to fraction form
    13,508.07/20,263.14 = 3,647.21/x
  3. Step 3: Cross multiply
    13,508.07x = 20,263.14 × 3,647.21
  4. Step 4: Simplify right side
    13,508.07x = 73,903,929.25
  5. Step 5: Solve for x
    x = 73,903,929.25/13,508.07
  6. Step 6: Final answer
    x = 5,471.09

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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.