Home / 15,625.43-21,563.45-8,551.87

Finding the Fourth Proportional to 15,625.43, 21,563.45 and 8,551.87

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Solution

The fourth proportional to 15,625.43, 21,563.45 and 8,551.87 is: 11,801.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.43 : 21,563.45 = 8,551.87 : x
  2. Step 2: Convert to fraction form
    15,625.43/21,563.45 = 8,551.87/x
  3. Step 3: Cross multiply
    15,625.43x = 21,563.45 × 8,551.87
  4. Step 4: Simplify right side
    15,625.43x = 184,407,821.15
  5. Step 5: Solve for x
    x = 184,407,821.15/15,625.43
  6. Step 6: Final answer
    x = 11,801.78

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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.