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Finding the Fourth Proportional to 13,573, 18,725.70 and 8,528.68

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Solution

The fourth proportional to 13,573, 18,725.70 and 8,528.68 is: 11,766.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,573 : 18,725.70 = 8,528.68 : x
  2. Step 2: Convert to fraction form
    13,573/18,725.70 = 8,528.68/x
  3. Step 3: Cross multiply
    13,573x = 18,725.70 × 8,528.68
  4. Step 4: Simplify right side
    13,573x = 159,705,503.08
  5. Step 5: Solve for x
    x = 159,705,503.08/13,573
  6. Step 6: Final answer
    x = 11,766.41

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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.