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Finding the Fourth Proportional to 19,511.04, 29,246 and 8,415.12

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Solution

The fourth proportional to 19,511.04, 29,246 and 8,415.12 is: 12,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,511.04 : 29,246 = 8,415.12 : x
  2. Step 2: Convert to fraction form
    19,511.04/29,246 = 8,415.12/x
  3. Step 3: Cross multiply
    19,511.04x = 29,246 × 8,415.12
  4. Step 4: Simplify right side
    19,511.04x = 246,108,599.52
  5. Step 5: Solve for x
    x = 246,108,599.52/19,511.04
  6. Step 6: Final answer
    x = 12,613.81

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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.