Home / 13,544.20-20,340.60-13,106.80

Finding the Fourth Proportional to 13,544.20, 20,340.60 and 13,106.80

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Solution

The fourth proportional to 13,544.20, 20,340.60 and 13,106.80 is: 19,683.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,544.20 : 20,340.60 = 13,106.80 : x
  2. Step 2: Convert to fraction form
    13,544.20/20,340.60 = 13,106.80/x
  3. Step 3: Cross multiply
    13,544.20x = 20,340.60 × 13,106.80
  4. Step 4: Simplify right side
    13,544.20x = 266,600,176.08
  5. Step 5: Solve for x
    x = 266,600,176.08/13,544.20
  6. Step 6: Final answer
    x = 19,683.72

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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.