Home / 13,225.72-18,251.64-7,257.22

Finding the Fourth Proportional to 13,225.72, 18,251.64 and 7,257.22

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Solution

The fourth proportional to 13,225.72, 18,251.64 and 7,257.22 is: 10,015.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.72 : 18,251.64 = 7,257.22 : x
  2. Step 2: Convert to fraction form
    13,225.72/18,251.64 = 7,257.22/x
  3. Step 3: Cross multiply
    13,225.72x = 18,251.64 × 7,257.22
  4. Step 4: Simplify right side
    13,225.72x = 132,456,166.84
  5. Step 5: Solve for x
    x = 132,456,166.84/13,225.72
  6. Step 6: Final answer
    x = 10,015.04

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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.