Home / 15,617.88-21,552.75-8,544.42

Finding the Fourth Proportional to 15,617.88, 21,552.75 and 8,544.42

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Solution

The fourth proportional to 15,617.88, 21,552.75 and 8,544.42 is: 11,791.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.88 : 21,552.75 = 8,544.42 : x
  2. Step 2: Convert to fraction form
    15,617.88/21,552.75 = 8,544.42/x
  3. Step 3: Cross multiply
    15,617.88x = 21,552.75 × 8,544.42
  4. Step 4: Simplify right side
    15,617.88x = 184,155,748.16
  5. Step 5: Solve for x
    x = 184,155,748.16/15,617.88
  6. Step 6: Final answer
    x = 11,791.34

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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.