Home / 13,226.48-18,252.44-7,640.56

Finding the Fourth Proportional to 13,226.48, 18,252.44 and 7,640.56

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Solution

The fourth proportional to 13,226.48, 18,252.44 and 7,640.56 is: 10,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.48 : 18,252.44 = 7,640.56 : x
  2. Step 2: Convert to fraction form
    13,226.48/18,252.44 = 7,640.56/x
  3. Step 3: Cross multiply
    13,226.48x = 18,252.44 × 7,640.56
  4. Step 4: Simplify right side
    13,226.48x = 139,458,862.97
  5. Step 5: Solve for x
    x = 139,458,862.97/13,226.48
  6. Step 6: Final answer
    x = 10,543.91

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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.