Home / 13,508.91-20,263.19-3,512.77

Finding the Fourth Proportional to 13,508.91, 20,263.19 and 3,512.77

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Solution

The fourth proportional to 13,508.91, 20,263.19 and 3,512.77 is: 5,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.91 : 20,263.19 = 3,512.77 : x
  2. Step 2: Convert to fraction form
    13,508.91/20,263.19 = 3,512.77/x
  3. Step 3: Cross multiply
    13,508.91x = 20,263.19 × 3,512.77
  4. Step 4: Simplify right side
    13,508.91x = 71,179,925.94
  5. Step 5: Solve for x
    x = 71,179,925.94/13,508.91
  6. Step 6: Final answer
    x = 5,269.11

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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.