Home / 9,157.54-12,637.66-5,179.25

Finding the Fourth Proportional to 9,157.54, 12,637.66 and 5,179.25

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Solution

The fourth proportional to 9,157.54, 12,637.66 and 5,179.25 is: 7,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,157.54 : 12,637.66 = 5,179.25 : x
  2. Step 2: Convert to fraction form
    9,157.54/12,637.66 = 5,179.25/x
  3. Step 3: Cross multiply
    9,157.54x = 12,637.66 × 5,179.25
  4. Step 4: Simplify right side
    9,157.54x = 65,453,600.56
  5. Step 5: Solve for x
    x = 65,453,600.56/9,157.54
  6. Step 6: Final answer
    x = 7,147.51

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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.