Home / 9,147.25-12,623.75-5,168.26

Finding the Fourth Proportional to 9,147.25, 12,623.75 and 5,168.26

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Solution

The fourth proportional to 9,147.25, 12,623.75 and 5,168.26 is: 7,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.25 : 12,623.75 = 5,168.26 : x
  2. Step 2: Convert to fraction form
    9,147.25/12,623.75 = 5,168.26/x
  3. Step 3: Cross multiply
    9,147.25x = 12,623.75 × 5,168.26
  4. Step 4: Simplify right side
    9,147.25x = 65,242,822.18
  5. Step 5: Solve for x
    x = 65,242,822.18/9,147.25
  6. Step 6: Final answer
    x = 7,132.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.