Home / 19,645.92-27,104.72-11,147.12

Finding the Fourth Proportional to 19,645.92, 27,104.72 and 11,147.12

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Solution

The fourth proportional to 19,645.92, 27,104.72 and 11,147.12 is: 15,379.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,645.92 : 27,104.72 = 11,147.12 : x
  2. Step 2: Convert to fraction form
    19,645.92/27,104.72 = 11,147.12/x
  3. Step 3: Cross multiply
    19,645.92x = 27,104.72 × 11,147.12
  4. Step 4: Simplify right side
    19,645.92x = 302,139,566.41
  5. Step 5: Solve for x
    x = 302,139,566.41/19,645.92
  6. Step 6: Final answer
    x = 15,379.25

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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.