Home / 12,083.45-18,122.40-4,292.26

Finding the Fourth Proportional to 12,083.45, 18,122.40 and 4,292.26

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Solution

The fourth proportional to 12,083.45, 18,122.40 and 4,292.26 is: 6,437.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,083.45 : 18,122.40 = 4,292.26 : x
  2. Step 2: Convert to fraction form
    12,083.45/18,122.40 = 4,292.26/x
  3. Step 3: Cross multiply
    12,083.45x = 18,122.40 × 4,292.26
  4. Step 4: Simplify right side
    12,083.45x = 77,786,007.32
  5. Step 5: Solve for x
    x = 77,786,007.32/12,083.45
  6. Step 6: Final answer
    x = 6,437.40

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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.