Home / 18,942.93-26,143.16-12,994.29

Finding the Fourth Proportional to 18,942.93, 26,143.16 and 12,994.29

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Solution

The fourth proportional to 18,942.93, 26,143.16 and 12,994.29 is: 17,933.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.93 : 26,143.16 = 12,994.29 : x
  2. Step 2: Convert to fraction form
    18,942.93/26,143.16 = 12,994.29/x
  3. Step 3: Cross multiply
    18,942.93x = 26,143.16 × 12,994.29
  4. Step 4: Simplify right side
    18,942.93x = 339,711,737.58
  5. Step 5: Solve for x
    x = 339,711,737.58/18,942.93
  6. Step 6: Final answer
    x = 17,933.43

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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.