Home / 13,791.24-20,675.16-5,477.10

Finding the Fourth Proportional to 13,791.24, 20,675.16 and 5,477.10

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Solution

The fourth proportional to 13,791.24, 20,675.16 and 5,477.10 is: 8,211.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,791.24 : 20,675.16 = 5,477.10 : x
  2. Step 2: Convert to fraction form
    13,791.24/20,675.16 = 5,477.10/x
  3. Step 3: Cross multiply
    13,791.24x = 20,675.16 × 5,477.10
  4. Step 4: Simplify right side
    13,791.24x = 113,239,918.84
  5. Step 5: Solve for x
    x = 113,239,918.84/13,791.24
  6. Step 6: Final answer
    x = 8,211.00

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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.