Home / 19,379.28-26,751.53-13,100.16

Finding the Fourth Proportional to 19,379.28, 26,751.53 and 13,100.16

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Solution

The fourth proportional to 19,379.28, 26,751.53 and 13,100.16 is: 18,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,379.28 : 26,751.53 = 13,100.16 : x
  2. Step 2: Convert to fraction form
    19,379.28/26,751.53 = 13,100.16/x
  3. Step 3: Cross multiply
    19,379.28x = 26,751.53 × 13,100.16
  4. Step 4: Simplify right side
    19,379.28x = 350,449,257.74
  5. Step 5: Solve for x
    x = 350,449,257.74/19,379.28
  6. Step 6: Final answer
    x = 18,083.71

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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.