Home / 15,617.75-21,552.44-8,544.15

Finding the Fourth Proportional to 15,617.75, 21,552.44 and 8,544.15

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Solution

The fourth proportional to 15,617.75, 21,552.44 and 8,544.15 is: 11,790.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,617.75 : 21,552.44 = 8,544.15 : x
  2. Step 2: Convert to fraction form
    15,617.75/21,552.44 = 8,544.15/x
  3. Step 3: Cross multiply
    15,617.75x = 21,552.44 × 8,544.15
  4. Step 4: Simplify right side
    15,617.75x = 184,147,237.51
  5. Step 5: Solve for x
    x = 184,147,237.51/15,617.75
  6. Step 6: Final answer
    x = 11,790.90

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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.