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Finding the Fourth Proportional to 12,609.63, 18,941.99 and 10,838.16

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Solution

The fourth proportional to 12,609.63, 18,941.99 and 10,838.16 is: 16,280.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,609.63 : 18,941.99 = 10,838.16 : x
  2. Step 2: Convert to fraction form
    12,609.63/18,941.99 = 10,838.16/x
  3. Step 3: Cross multiply
    12,609.63x = 18,941.99 × 10,838.16
  4. Step 4: Simplify right side
    12,609.63x = 205,296,264.15
  5. Step 5: Solve for x
    x = 205,296,264.15/12,609.63
  6. Step 6: Final answer
    x = 16,280.91

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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.