Home / 13,723.96-18,939.14-7,436.32

Finding the Fourth Proportional to 13,723.96, 18,939.14 and 7,436.32

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Solution

The fourth proportional to 13,723.96, 18,939.14 and 7,436.32 is: 10,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.96 : 18,939.14 = 7,436.32 : x
  2. Step 2: Convert to fraction form
    13,723.96/18,939.14 = 7,436.32/x
  3. Step 3: Cross multiply
    13,723.96x = 18,939.14 × 7,436.32
  4. Step 4: Simplify right side
    13,723.96x = 140,837,505.56
  5. Step 5: Solve for x
    x = 140,837,505.56/13,723.96
  6. Step 6: Final answer
    x = 10,262.16

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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.