Home / 13,785.33-20,649.43-7,191.52

Finding the Fourth Proportional to 13,785.33, 20,649.43 and 7,191.52

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Solution

The fourth proportional to 13,785.33, 20,649.43 and 7,191.52 is: 10,772.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.33 : 20,649.43 = 7,191.52 : x
  2. Step 2: Convert to fraction form
    13,785.33/20,649.43 = 7,191.52/x
  3. Step 3: Cross multiply
    13,785.33x = 20,649.43 × 7,191.52
  4. Step 4: Simplify right side
    13,785.33x = 148,500,788.83
  5. Step 5: Solve for x
    x = 148,500,788.83/13,785.33
  6. Step 6: Final answer
    x = 10,772.38

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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.