Home / 13,217.66-18,240.61-7,249.63

Finding the Fourth Proportional to 13,217.66, 18,240.61 and 7,249.63

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Solution

The fourth proportional to 13,217.66, 18,240.61 and 7,249.63 is: 10,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.66 : 18,240.61 = 7,249.63 : x
  2. Step 2: Convert to fraction form
    13,217.66/18,240.61 = 7,249.63/x
  3. Step 3: Cross multiply
    13,217.66x = 18,240.61 × 7,249.63
  4. Step 4: Simplify right side
    13,217.66x = 132,237,609.46
  5. Step 5: Solve for x
    x = 132,237,609.46/13,217.66
  6. Step 6: Final answer
    x = 10,004.62

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Half scale
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Double scale
Find fourth proportional to 13,218.66, 18,241.99 and 7,250.63
Similar ratio
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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.