Home / 9,147.01-13,720.48-2,221.51

Finding the Fourth Proportional to 9,147.01, 13,720.48 and 2,221.51

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Solution

The fourth proportional to 9,147.01, 13,720.48 and 2,221.51 is: 3,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.01 : 13,720.48 = 2,221.51 : x
  2. Step 2: Convert to fraction form
    9,147.01/13,720.48 = 2,221.51/x
  3. Step 3: Cross multiply
    9,147.01x = 13,720.48 × 2,221.51
  4. Step 4: Simplify right side
    9,147.01x = 30,480,183.52
  5. Step 5: Solve for x
    x = 30,480,183.52/9,147.01
  6. Step 6: Final answer
    x = 3,332.26

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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.