Home / 13,214.58-18,235.57-7,906.26

Finding the Fourth Proportional to 13,214.58, 18,235.57 and 7,906.26

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Solution

The fourth proportional to 13,214.58, 18,235.57 and 7,906.26 is: 10,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,214.58 : 18,235.57 = 7,906.26 : x
  2. Step 2: Convert to fraction form
    13,214.58/18,235.57 = 7,906.26/x
  3. Step 3: Cross multiply
    13,214.58x = 18,235.57 × 7,906.26
  4. Step 4: Simplify right side
    13,214.58x = 144,175,157.67
  5. Step 5: Solve for x
    x = 144,175,157.67/13,214.58
  6. Step 6: Final answer
    x = 10,910.31

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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.