Home / 13,541.11-20,309.60-5,219.91

Finding the Fourth Proportional to 13,541.11, 20,309.60 and 5,219.91

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Solution

The fourth proportional to 13,541.11, 20,309.60 and 5,219.91 is: 7,829.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.11 : 20,309.60 = 5,219.91 : x
  2. Step 2: Convert to fraction form
    13,541.11/20,309.60 = 5,219.91/x
  3. Step 3: Cross multiply
    13,541.11x = 20,309.60 × 5,219.91
  4. Step 4: Simplify right side
    13,541.11x = 106,014,297.19
  5. Step 5: Solve for x
    x = 106,014,297.19/13,541.11
  6. Step 6: Final answer
    x = 7,829.07

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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.