Home / 13,465.40-20,198.10-3,606.20

Finding the Fourth Proportional to 13,465.40, 20,198.10 and 3,606.20

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Solution

The fourth proportional to 13,465.40, 20,198.10 and 3,606.20 is: 5,409.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,465.40 : 20,198.10 = 3,606.20 : x
  2. Step 2: Convert to fraction form
    13,465.40/20,198.10 = 3,606.20/x
  3. Step 3: Cross multiply
    13,465.40x = 20,198.10 × 3,606.20
  4. Step 4: Simplify right side
    13,465.40x = 72,838,388.22
  5. Step 5: Solve for x
    x = 72,838,388.22/13,465.40
  6. Step 6: Final answer
    x = 5,409.30

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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.