Home / 13,148.36-19,732.05-5,144.31

Finding the Fourth Proportional to 13,148.36, 19,732.05 and 5,144.31

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Solution

The fourth proportional to 13,148.36, 19,732.05 and 5,144.31 is: 7,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148.36 : 19,732.05 = 5,144.31 : x
  2. Step 2: Convert to fraction form
    13,148.36/19,732.05 = 5,144.31/x
  3. Step 3: Cross multiply
    13,148.36x = 19,732.05 × 5,144.31
  4. Step 4: Simplify right side
    13,148.36x = 101,507,782.14
  5. Step 5: Solve for x
    x = 101,507,782.14/13,148.36
  6. Step 6: Final answer
    x = 7,720.19

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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.