Home / 19,143.20-28,673.22-9,261.75

Finding the Fourth Proportional to 19,143.20, 28,673.22 and 9,261.75

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Solution

The fourth proportional to 19,143.20, 28,673.22 and 9,261.75 is: 13,872.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.20 : 28,673.22 = 9,261.75 : x
  2. Step 2: Convert to fraction form
    19,143.20/28,673.22 = 9,261.75/x
  3. Step 3: Cross multiply
    19,143.20x = 28,673.22 × 9,261.75
  4. Step 4: Simplify right side
    19,143.20x = 265,564,195.34
  5. Step 5: Solve for x
    x = 265,564,195.34/19,143.20
  6. Step 6: Final answer
    x = 13,872.51

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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.