Home / 15,634.89-21,575.94-8,561.16

Finding the Fourth Proportional to 15,634.89, 21,575.94 and 8,561.16

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Solution

The fourth proportional to 15,634.89, 21,575.94 and 8,561.16 is: 11,814.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.89 : 21,575.94 = 8,561.16 : x
  2. Step 2: Convert to fraction form
    15,634.89/21,575.94 = 8,561.16/x
  3. Step 3: Cross multiply
    15,634.89x = 21,575.94 × 8,561.16
  4. Step 4: Simplify right side
    15,634.89x = 184,715,074.49
  5. Step 5: Solve for x
    x = 184,715,074.49/15,634.89
  6. Step 6: Final answer
    x = 11,814.29

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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.