Home / 13,826.74-20,740.18-3,438.49

Finding the Fourth Proportional to 13,826.74, 20,740.18 and 3,438.49

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Solution

The fourth proportional to 13,826.74, 20,740.18 and 3,438.49 is: 5,157.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,826.74 : 20,740.18 = 3,438.49 : x
  2. Step 2: Convert to fraction form
    13,826.74/20,740.18 = 3,438.49/x
  3. Step 3: Cross multiply
    13,826.74x = 20,740.18 × 3,438.49
  4. Step 4: Simplify right side
    13,826.74x = 71,314,901.53
  5. Step 5: Solve for x
    x = 71,314,901.53/13,826.74
  6. Step 6: Final answer
    x = 5,157.75

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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.