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Finding the Fourth Proportional to 34,408, 51,620.67 and 9,784

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Solution

The fourth proportional to 34,408, 51,620.67 and 9,784 is: 14,678.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,408 : 51,620.67 = 9,784 : x
  2. Step 2: Convert to fraction form
    34,408/51,620.67 = 9,784/x
  3. Step 3: Cross multiply
    34,408x = 51,620.67 × 9,784
  4. Step 4: Simplify right side
    34,408x = 505,056,635.28
  5. Step 5: Solve for x
    x = 505,056,635.28/34,408
  6. Step 6: Final answer
    x = 14,678.47

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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.