Home / 13,452.87-20,161.54-10,320.91

Finding the Fourth Proportional to 13,452.87, 20,161.54 and 10,320.91

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Solution

The fourth proportional to 13,452.87, 20,161.54 and 10,320.91 is: 15,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.87 : 20,161.54 = 10,320.91 : x
  2. Step 2: Convert to fraction form
    13,452.87/20,161.54 = 10,320.91/x
  3. Step 3: Cross multiply
    13,452.87x = 20,161.54 × 10,320.91
  4. Step 4: Simplify right side
    13,452.87x = 208,085,439.80
  5. Step 5: Solve for x
    x = 208,085,439.80/13,452.87
  6. Step 6: Final answer
    x = 15,467.74

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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.