Home / 15,634.36-21,575.49-8,561.44

Finding the Fourth Proportional to 15,634.36, 21,575.49 and 8,561.44

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Solution

The fourth proportional to 15,634.36, 21,575.49 and 8,561.44 is: 11,814.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.36 : 21,575.49 = 8,561.44 : x
  2. Step 2: Convert to fraction form
    15,634.36/21,575.49 = 8,561.44/x
  3. Step 3: Cross multiply
    15,634.36x = 21,575.49 × 8,561.44
  4. Step 4: Simplify right side
    15,634.36x = 184,717,263.11
  5. Step 5: Solve for x
    x = 184,717,263.11/15,634.36
  6. Step 6: Final answer
    x = 11,814.83

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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.