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Finding the Fourth Proportional to 19,228.56, 28,855.71 and 6,748.65

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Solution

The fourth proportional to 19,228.56, 28,855.71 and 6,748.65 is: 10,127.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.56 : 28,855.71 = 6,748.65 : x
  2. Step 2: Convert to fraction form
    19,228.56/28,855.71 = 6,748.65/x
  3. Step 3: Cross multiply
    19,228.56x = 28,855.71 × 6,748.65
  4. Step 4: Simplify right side
    19,228.56x = 194,737,087.29
  5. Step 5: Solve for x
    x = 194,737,087.29/19,228.56
  6. Step 6: Final answer
    x = 10,127.49

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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.