Home / 13,488.22-20,229.08-6,911.02

Finding the Fourth Proportional to 13,488.22, 20,229.08 and 6,911.02

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Solution

The fourth proportional to 13,488.22, 20,229.08 and 6,911.02 is: 10,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488.22 : 20,229.08 = 6,911.02 : x
  2. Step 2: Convert to fraction form
    13,488.22/20,229.08 = 6,911.02/x
  3. Step 3: Cross multiply
    13,488.22x = 20,229.08 × 6,911.02
  4. Step 4: Simplify right side
    13,488.22x = 139,803,576.46
  5. Step 5: Solve for x
    x = 139,803,576.46/13,488.22
  6. Step 6: Final answer
    x = 10,364.86

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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.