Home / 13,472.28-20,204.64-5,580.72

Finding the Fourth Proportional to 13,472.28, 20,204.64 and 5,580.72

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Solution

The fourth proportional to 13,472.28, 20,204.64 and 5,580.72 is: 8,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.28 : 20,204.64 = 5,580.72 : x
  2. Step 2: Convert to fraction form
    13,472.28/20,204.64 = 5,580.72/x
  3. Step 3: Cross multiply
    13,472.28x = 20,204.64 × 5,580.72
  4. Step 4: Simplify right side
    13,472.28x = 112,756,438.54
  5. Step 5: Solve for x
    x = 112,756,438.54/13,472.28
  6. Step 6: Final answer
    x = 8,369.51

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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.