Home / 15,625.10-21,561.54-8,551.38

Finding the Fourth Proportional to 15,625.10, 21,561.54 and 8,551.38

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Solution

The fourth proportional to 15,625.10, 21,561.54 and 8,551.38 is: 11,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.10 : 21,561.54 = 8,551.38 : x
  2. Step 2: Convert to fraction form
    15,625.10/21,561.54 = 8,551.38/x
  3. Step 3: Cross multiply
    15,625.10x = 21,561.54 × 8,551.38
  4. Step 4: Simplify right side
    15,625.10x = 184,380,921.93
  5. Step 5: Solve for x
    x = 184,380,921.93/15,625.10
  6. Step 6: Final answer
    x = 11,800.30

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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.