Home / 13,569.66-20,352.45-7,949.91

Finding the Fourth Proportional to 13,569.66, 20,352.45 and 7,949.91

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Solution

The fourth proportional to 13,569.66, 20,352.45 and 7,949.91 is: 11,923.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569.66 : 20,352.45 = 7,949.91 : x
  2. Step 2: Convert to fraction form
    13,569.66/20,352.45 = 7,949.91/x
  3. Step 3: Cross multiply
    13,569.66x = 20,352.45 × 7,949.91
  4. Step 4: Simplify right side
    13,569.66x = 161,800,145.78
  5. Step 5: Solve for x
    x = 161,800,145.78/13,569.66
  6. Step 6: Final answer
    x = 11,923.67

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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.