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Finding the Fourth Proportional to 10,636, 14,675.17 and 8,940.95

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Solution

The fourth proportional to 10,636, 14,675.17 and 8,940.95 is: 12,336.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,636 : 14,675.17 = 8,940.95 : x
  2. Step 2: Convert to fraction form
    10,636/14,675.17 = 8,940.95/x
  3. Step 3: Cross multiply
    10,636x = 14,675.17 × 8,940.95
  4. Step 4: Simplify right side
    10,636x = 131,209,961.21
  5. Step 5: Solve for x
    x = 131,209,961.21/10,636
  6. Step 6: Final answer
    x = 12,336.40

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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.