Home / 15,634.70-21,575.67-8,561.12

Finding the Fourth Proportional to 15,634.70, 21,575.67 and 8,561.12

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Solution

The fourth proportional to 15,634.70, 21,575.67 and 8,561.12 is: 11,814.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,634.70 : 21,575.67 = 8,561.12 : x
  2. Step 2: Convert to fraction form
    15,634.70/21,575.67 = 8,561.12/x
  3. Step 3: Cross multiply
    15,634.70x = 21,575.67 × 8,561.12
  4. Step 4: Simplify right side
    15,634.70x = 184,711,857.14
  5. Step 5: Solve for x
    x = 184,711,857.14/15,634.70
  6. Step 6: Final answer
    x = 11,814.23

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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.