Home / 11,448.47-17,171.55-3,129.23

Finding the Fourth Proportional to 11,448.47, 17,171.55 and 3,129.23

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Solution

The fourth proportional to 11,448.47, 17,171.55 and 3,129.23 is: 4,693.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.47 : 17,171.55 = 3,129.23 : x
  2. Step 2: Convert to fraction form
    11,448.47/17,171.55 = 3,129.23/x
  3. Step 3: Cross multiply
    11,448.47x = 17,171.55 × 3,129.23
  4. Step 4: Simplify right side
    11,448.47x = 53,733,643.55
  5. Step 5: Solve for x
    x = 53,733,643.55/11,448.47
  6. Step 6: Final answer
    x = 4,693.52

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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.