Home / 12,942.36-19,409.49-8,582.94

Finding the Fourth Proportional to 12,942.36, 19,409.49 and 8,582.94

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Solution

The fourth proportional to 12,942.36, 19,409.49 and 8,582.94 is: 12,871.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942.36 : 19,409.49 = 8,582.94 : x
  2. Step 2: Convert to fraction form
    12,942.36/19,409.49 = 8,582.94/x
  3. Step 3: Cross multiply
    12,942.36x = 19,409.49 × 8,582.94
  4. Step 4: Simplify right side
    12,942.36x = 166,590,488.10
  5. Step 5: Solve for x
    x = 166,590,488.10/12,942.36
  6. Step 6: Final answer
    x = 12,871.72

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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.