Home / 13,572.10-20,358.36-4,212.02

Finding the Fourth Proportional to 13,572.10, 20,358.36 and 4,212.02

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Solution

The fourth proportional to 13,572.10, 20,358.36 and 4,212.02 is: 6,318.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.10 : 20,358.36 = 4,212.02 : x
  2. Step 2: Convert to fraction form
    13,572.10/20,358.36 = 4,212.02/x
  3. Step 3: Cross multiply
    13,572.10x = 20,358.36 × 4,212.02
  4. Step 4: Simplify right side
    13,572.10x = 85,749,819.49
  5. Step 5: Solve for x
    x = 85,749,819.49/13,572.10
  6. Step 6: Final answer
    x = 6,318.10

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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.