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Finding the Fourth Proportional to 19,006.57, 28,509.86 and 8,473.87

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Solution

The fourth proportional to 19,006.57, 28,509.86 and 8,473.87 is: 12,710.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,006.57 : 28,509.86 = 8,473.87 : x
  2. Step 2: Convert to fraction form
    19,006.57/28,509.86 = 8,473.87/x
  3. Step 3: Cross multiply
    19,006.57x = 28,509.86 × 8,473.87
  4. Step 4: Simplify right side
    19,006.57x = 241,588,847.36
  5. Step 5: Solve for x
    x = 241,588,847.36/19,006.57
  6. Step 6: Final answer
    x = 12,710.81

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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.