Home / 13,206.20-19,838.10-12,716.60

Finding the Fourth Proportional to 13,206.20, 19,838.10 and 12,716.60

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Solution

The fourth proportional to 13,206.20, 19,838.10 and 12,716.60 is: 19,102.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.20 : 19,838.10 = 12,716.60 : x
  2. Step 2: Convert to fraction form
    13,206.20/19,838.10 = 12,716.60/x
  3. Step 3: Cross multiply
    13,206.20x = 19,838.10 × 12,716.60
  4. Step 4: Simplify right side
    13,206.20x = 252,273,182.46
  5. Step 5: Solve for x
    x = 252,273,182.46/13,206.20
  6. Step 6: Final answer
    x = 19,102.63

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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.