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Finding the Fourth Proportional to 12,578.08, 18,867.04 and 4,370.08

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Solution

The fourth proportional to 12,578.08, 18,867.04 and 4,370.08 is: 6,555.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578.08 : 18,867.04 = 4,370.08 : x
  2. Step 2: Convert to fraction form
    12,578.08/18,867.04 = 4,370.08/x
  3. Step 3: Cross multiply
    12,578.08x = 18,867.04 × 4,370.08
  4. Step 4: Simplify right side
    12,578.08x = 82,450,474.16
  5. Step 5: Solve for x
    x = 82,450,474.16/12,578.08
  6. Step 6: Final answer
    x = 6,555.09

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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.