Home / 15,625.22-21,562.84-8,551.64

Finding the Fourth Proportional to 15,625.22, 21,562.84 and 8,551.64

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Solution

The fourth proportional to 15,625.22, 21,562.84 and 8,551.64 is: 11,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.22 : 21,562.84 = 8,551.64 : x
  2. Step 2: Convert to fraction form
    15,625.22/21,562.84 = 8,551.64/x
  3. Step 3: Cross multiply
    15,625.22x = 21,562.84 × 8,551.64
  4. Step 4: Simplify right side
    15,625.22x = 184,397,645.06
  5. Step 5: Solve for x
    x = 184,397,645.06/15,625.22
  6. Step 6: Final answer
    x = 11,801.28

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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.