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Finding the Fourth Proportional to 34,290, 51,435 and 9,666

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Solution

The fourth proportional to 34,290, 51,435 and 9,666 is: 14,499

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,290 : 51,435 = 9,666 : x
  2. Step 2: Convert to fraction form
    34,290/51,435 = 9,666/x
  3. Step 3: Cross multiply
    34,290x = 51,435 × 9,666
  4. Step 4: Simplify right side
    34,290x = 497,170,710
  5. Step 5: Solve for x
    x = 497,170,710/34,290
  6. Step 6: Final answer
    x = 14,499

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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.