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Finding the Fourth Proportional to 9,394.99, 12,949.98 and 6,369.13

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Solution

The fourth proportional to 9,394.99, 12,949.98 and 6,369.13 is: 8,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,394.99 : 12,949.98 = 6,369.13 : x
  2. Step 2: Convert to fraction form
    9,394.99/12,949.98 = 6,369.13/x
  3. Step 3: Cross multiply
    9,394.99x = 12,949.98 × 6,369.13
  4. Step 4: Simplify right side
    9,394.99x = 82,480,098.42
  5. Step 5: Solve for x
    x = 82,480,098.42/9,394.99
  6. Step 6: Final answer
    x = 8,779.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.