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Finding the Fourth Proportional to 19,605.02, 29,391 and 8,503.35

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Solution

The fourth proportional to 19,605.02, 29,391 and 8,503.35 is: 12,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.02 : 29,391 = 8,503.35 : x
  2. Step 2: Convert to fraction form
    19,605.02/29,391 = 8,503.35/x
  3. Step 3: Cross multiply
    19,605.02x = 29,391 × 8,503.35
  4. Step 4: Simplify right side
    19,605.02x = 249,921,959.85
  5. Step 5: Solve for x
    x = 249,921,959.85/19,605.02
  6. Step 6: Final answer
    x = 12,747.85

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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.