Home / 19,237.91-28,818.45-12,644.10

Finding the Fourth Proportional to 19,237.91, 28,818.45 and 12,644.10

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Solution

The fourth proportional to 19,237.91, 28,818.45 and 12,644.10 is: 18,940.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.91 : 28,818.45 = 12,644.10 : x
  2. Step 2: Convert to fraction form
    19,237.91/28,818.45 = 12,644.10/x
  3. Step 3: Cross multiply
    19,237.91x = 28,818.45 × 12,644.10
  4. Step 4: Simplify right side
    19,237.91x = 364,383,363.65
  5. Step 5: Solve for x
    x = 364,383,363.65/19,237.91
  6. Step 6: Final answer
    x = 18,940.91

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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.