Home / 15,245.70-21,037.23-8,530.80

Finding the Fourth Proportional to 15,245.70, 21,037.23 and 8,530.80

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Solution

The fourth proportional to 15,245.70, 21,037.23 and 8,530.80 is: 11,771.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,245.70 : 21,037.23 = 8,530.80 : x
  2. Step 2: Convert to fraction form
    15,245.70/21,037.23 = 8,530.80/x
  3. Step 3: Cross multiply
    15,245.70x = 21,037.23 × 8,530.80
  4. Step 4: Simplify right side
    15,245.70x = 179,464,401.68
  5. Step 5: Solve for x
    x = 179,464,401.68/15,245.70
  6. Step 6: Final answer
    x = 11,771.48

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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.