Home / 13,213.89-18,240.99-9,250.56

Finding the Fourth Proportional to 13,213.89, 18,240.99 and 9,250.56

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Solution

The fourth proportional to 13,213.89, 18,240.99 and 9,250.56 is: 12,769.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.89 : 18,240.99 = 9,250.56 : x
  2. Step 2: Convert to fraction form
    13,213.89/18,240.99 = 9,250.56/x
  3. Step 3: Cross multiply
    13,213.89x = 18,240.99 × 9,250.56
  4. Step 4: Simplify right side
    13,213.89x = 168,739,326.20
  5. Step 5: Solve for x
    x = 168,739,326.20/13,213.89
  6. Step 6: Final answer
    x = 12,769.84

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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.