Home / 13,712.34-20,569.26-3,850.86

Finding the Fourth Proportional to 13,712.34, 20,569.26 and 3,850.86

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Solution

The fourth proportional to 13,712.34, 20,569.26 and 3,850.86 is: 5,776.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.34 : 20,569.26 = 3,850.86 : x
  2. Step 2: Convert to fraction form
    13,712.34/20,569.26 = 3,850.86/x
  3. Step 3: Cross multiply
    13,712.34x = 20,569.26 × 3,850.86
  4. Step 4: Simplify right side
    13,712.34x = 79,209,340.56
  5. Step 5: Solve for x
    x = 79,209,340.56/13,712.34
  6. Step 6: Final answer
    x = 5,776.50

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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.