Home / 16,203.45-22,354.19-9,919.47

Finding the Fourth Proportional to 16,203.45, 22,354.19 and 9,919.47

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Solution

The fourth proportional to 16,203.45, 22,354.19 and 9,919.47 is: 13,684.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,203.45 : 22,354.19 = 9,919.47 : x
  2. Step 2: Convert to fraction form
    16,203.45/22,354.19 = 9,919.47/x
  3. Step 3: Cross multiply
    16,203.45x = 22,354.19 × 9,919.47
  4. Step 4: Simplify right side
    16,203.45x = 221,741,667.48
  5. Step 5: Solve for x
    x = 221,741,667.48/16,203.45
  6. Step 6: Final answer
    x = 13,684.84

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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.