Home / 19,122.93-28,679.24-12,092.40

Finding the Fourth Proportional to 19,122.93, 28,679.24 and 12,092.40

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Solution

The fourth proportional to 19,122.93, 28,679.24 and 12,092.40 is: 18,135.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,122.93 : 28,679.24 = 12,092.40 : x
  2. Step 2: Convert to fraction form
    19,122.93/28,679.24 = 12,092.40/x
  3. Step 3: Cross multiply
    19,122.93x = 28,679.24 × 12,092.40
  4. Step 4: Simplify right side
    19,122.93x = 346,800,781.31
  5. Step 5: Solve for x
    x = 346,800,781.31/19,122.93
  6. Step 6: Final answer
    x = 18,135.34

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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.