Home / 13,611.37-20,417.06-3,750.75

Finding the Fourth Proportional to 13,611.37, 20,417.06 and 3,750.75

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Solution

The fourth proportional to 13,611.37, 20,417.06 and 3,750.75 is: 5,626.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.37 : 20,417.06 = 3,750.75 : x
  2. Step 2: Convert to fraction form
    13,611.37/20,417.06 = 3,750.75/x
  3. Step 3: Cross multiply
    13,611.37x = 20,417.06 × 3,750.75
  4. Step 4: Simplify right side
    13,611.37x = 76,579,287.80
  5. Step 5: Solve for x
    x = 76,579,287.80/13,611.37
  6. Step 6: Final answer
    x = 5,626.13

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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.