Home / 13,356.33-20,028.40-7,114.74

Finding the Fourth Proportional to 13,356.33, 20,028.40 and 7,114.74

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Solution

The fourth proportional to 13,356.33, 20,028.40 and 7,114.74 is: 10,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.33 : 20,028.40 = 7,114.74 : x
  2. Step 2: Convert to fraction form
    13,356.33/20,028.40 = 7,114.74/x
  3. Step 3: Cross multiply
    13,356.33x = 20,028.40 × 7,114.74
  4. Step 4: Simplify right side
    13,356.33x = 142,496,858.62
  5. Step 5: Solve for x
    x = 142,496,858.62/13,356.33
  6. Step 6: Final answer
    x = 10,668.86

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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.