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Finding the Fourth Proportional to 19,007.46, 28,511.22 and 5,156.46

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Solution

The fourth proportional to 19,007.46, 28,511.22 and 5,156.46 is: 7,734.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,007.46 : 28,511.22 = 5,156.46 : x
  2. Step 2: Convert to fraction form
    19,007.46/28,511.22 = 5,156.46/x
  3. Step 3: Cross multiply
    19,007.46x = 28,511.22 × 5,156.46
  4. Step 4: Simplify right side
    19,007.46x = 147,016,965.48
  5. Step 5: Solve for x
    x = 147,016,965.48/19,007.46
  6. Step 6: Final answer
    x = 7,734.70

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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.