Home / 13,712.02-18,922.26-7,743.49

Finding the Fourth Proportional to 13,712.02, 18,922.26 and 7,743.49

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Solution

The fourth proportional to 13,712.02, 18,922.26 and 7,743.49 is: 10,685.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.02 : 18,922.26 = 7,743.49 : x
  2. Step 2: Convert to fraction form
    13,712.02/18,922.26 = 7,743.49/x
  3. Step 3: Cross multiply
    13,712.02x = 18,922.26 × 7,743.49
  4. Step 4: Simplify right side
    13,712.02x = 146,524,331.09
  5. Step 5: Solve for x
    x = 146,524,331.09/13,712.02
  6. Step 6: Final answer
    x = 10,685.83

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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.