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Finding the Fourth Proportional to 13,750.92, 20,626.20 and 3,362.76

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Solution

The fourth proportional to 13,750.92, 20,626.20 and 3,362.76 is: 5,044.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.92 : 20,626.20 = 3,362.76 : x
  2. Step 2: Convert to fraction form
    13,750.92/20,626.20 = 3,362.76/x
  3. Step 3: Cross multiply
    13,750.92x = 20,626.20 × 3,362.76
  4. Step 4: Simplify right side
    13,750.92x = 69,360,960.31
  5. Step 5: Solve for x
    x = 69,360,960.31/13,750.92
  6. Step 6: Final answer
    x = 5,044.10

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1.5x scale

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.