Home / 15,723.36-21,697.99-8,553.39

Finding the Fourth Proportional to 15,723.36, 21,697.99 and 8,553.39

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Solution

The fourth proportional to 15,723.36, 21,697.99 and 8,553.39 is: 11,803.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,723.36 : 21,697.99 = 8,553.39 : x
  2. Step 2: Convert to fraction form
    15,723.36/21,697.99 = 8,553.39/x
  3. Step 3: Cross multiply
    15,723.36x = 21,697.99 × 8,553.39
  4. Step 4: Simplify right side
    15,723.36x = 185,591,370.69
  5. Step 5: Solve for x
    x = 185,591,370.69/15,723.36
  6. Step 6: Final answer
    x = 11,803.54

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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.