Home / 13,775.03-20,662.94-3,386.75

Finding the Fourth Proportional to 13,775.03, 20,662.94 and 3,386.75

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Solution

The fourth proportional to 13,775.03, 20,662.94 and 3,386.75 is: 5,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.03 : 20,662.94 = 3,386.75 : x
  2. Step 2: Convert to fraction form
    13,775.03/20,662.94 = 3,386.75/x
  3. Step 3: Cross multiply
    13,775.03x = 20,662.94 × 3,386.75
  4. Step 4: Simplify right side
    13,775.03x = 69,980,195.11
  5. Step 5: Solve for x
    x = 69,980,195.11/13,775.03
  6. Step 6: Final answer
    x = 5,080.22

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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.