Home / 14,109.80-19,469.48-8,140.37

Finding the Fourth Proportional to 14,109.80, 19,469.48 and 8,140.37

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Solution

The fourth proportional to 14,109.80, 19,469.48 and 8,140.37 is: 11,232.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.80 : 19,469.48 = 8,140.37 : x
  2. Step 2: Convert to fraction form
    14,109.80/19,469.48 = 8,140.37/x
  3. Step 3: Cross multiply
    14,109.80x = 19,469.48 × 8,140.37
  4. Step 4: Simplify right side
    14,109.80x = 158,488,632.86
  5. Step 5: Solve for x
    x = 158,488,632.86/14,109.80
  6. Step 6: Final answer
    x = 11,232.53

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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.