Home / 12,918.23-19,376.62-4,152.44

Finding the Fourth Proportional to 12,918.23, 19,376.62 and 4,152.44

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Solution

The fourth proportional to 12,918.23, 19,376.62 and 4,152.44 is: 6,228.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,918.23 : 19,376.62 = 4,152.44 : x
  2. Step 2: Convert to fraction form
    12,918.23/19,376.62 = 4,152.44/x
  3. Step 3: Cross multiply
    12,918.23x = 19,376.62 × 4,152.44
  4. Step 4: Simplify right side
    12,918.23x = 80,460,290.01
  5. Step 5: Solve for x
    x = 80,460,290.01/12,918.23
  6. Step 6: Final answer
    x = 6,228.43

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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.