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Finding the Fourth Proportional to 12,495.38, 18,746.15 and 8,804.82

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Solution

The fourth proportional to 12,495.38, 18,746.15 and 8,804.82 is: 13,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,495.38 : 18,746.15 = 8,804.82 : x
  2. Step 2: Convert to fraction form
    12,495.38/18,746.15 = 8,804.82/x
  3. Step 3: Cross multiply
    12,495.38x = 18,746.15 × 8,804.82
  4. Step 4: Simplify right side
    12,495.38x = 165,056,476.44
  5. Step 5: Solve for x
    x = 165,056,476.44/12,495.38
  6. Step 6: Final answer
    x = 13,209.40

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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.