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Finding the Fourth Proportional to 12,479.08, 18,702.06 and 6,623.08

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Solution

The fourth proportional to 12,479.08, 18,702.06 and 6,623.08 is: 9,925.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.08 : 18,702.06 = 6,623.08 : x
  2. Step 2: Convert to fraction form
    12,479.08/18,702.06 = 6,623.08/x
  3. Step 3: Cross multiply
    12,479.08x = 18,702.06 × 6,623.08
  4. Step 4: Simplify right side
    12,479.08x = 123,865,239.54
  5. Step 5: Solve for x
    x = 123,865,239.54/12,479.08
  6. Step 6: Final answer
    x = 9,925.83

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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.