Home / 13,648.34-20,472.52-4,288.32

Finding the Fourth Proportional to 13,648.34, 20,472.52 and 4,288.32

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Solution

The fourth proportional to 13,648.34, 20,472.52 and 4,288.32 is: 6,432.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,648.34 : 20,472.52 = 4,288.32 : x
  2. Step 2: Convert to fraction form
    13,648.34/20,472.52 = 4,288.32/x
  3. Step 3: Cross multiply
    13,648.34x = 20,472.52 × 4,288.32
  4. Step 4: Simplify right side
    13,648.34x = 87,792,716.97
  5. Step 5: Solve for x
    x = 87,792,716.97/13,648.34
  6. Step 6: Final answer
    x = 6,432.48

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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.