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Finding the Fourth Proportional to 13,725.59, 18,941.04 and 9,009.56

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Solution

The fourth proportional to 13,725.59, 18,941.04 and 9,009.56 is: 12,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.59 : 18,941.04 = 9,009.56 : x
  2. Step 2: Convert to fraction form
    13,725.59/18,941.04 = 9,009.56/x
  3. Step 3: Cross multiply
    13,725.59x = 18,941.04 × 9,009.56
  4. Step 4: Simplify right side
    13,725.59x = 170,650,483.70
  5. Step 5: Solve for x
    x = 170,650,483.70/13,725.59
  6. Step 6: Final answer
    x = 12,433.02

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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.