Home / 19,119.80-28,643.25-11,202.86

Finding the Fourth Proportional to 19,119.80, 28,643.25 and 11,202.86

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Solution

The fourth proportional to 19,119.80, 28,643.25 and 11,202.86 is: 16,782.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,119.80 : 28,643.25 = 11,202.86 : x
  2. Step 2: Convert to fraction form
    19,119.80/28,643.25 = 11,202.86/x
  3. Step 3: Cross multiply
    19,119.80x = 28,643.25 × 11,202.86
  4. Step 4: Simplify right side
    19,119.80x = 320,886,319.70
  5. Step 5: Solve for x
    x = 320,886,319.70/19,119.80
  6. Step 6: Final answer
    x = 16,782.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.