Home / 13,213.94-18,235.10-7,245.59

Finding the Fourth Proportional to 13,213.94, 18,235.10 and 7,245.59

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Solution

The fourth proportional to 13,213.94, 18,235.10 and 7,245.59 is: 9,998.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.94 : 18,235.10 = 7,245.59 : x
  2. Step 2: Convert to fraction form
    13,213.94/18,235.10 = 7,245.59/x
  3. Step 3: Cross multiply
    13,213.94x = 18,235.10 × 7,245.59
  4. Step 4: Simplify right side
    13,213.94x = 132,124,058.21
  5. Step 5: Solve for x
    x = 132,124,058.21/13,213.94
  6. Step 6: Final answer
    x = 9,998.84

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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.