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Finding the Fourth Proportional to 13,572.63, 20,360.43 and 6,560.73

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Solution

The fourth proportional to 13,572.63, 20,360.43 and 6,560.73 is: 9,841.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.63 : 20,360.43 = 6,560.73 : x
  2. Step 2: Convert to fraction form
    13,572.63/20,360.43 = 6,560.73/x
  3. Step 3: Cross multiply
    13,572.63x = 20,360.43 × 6,560.73
  4. Step 4: Simplify right side
    13,572.63x = 133,579,283.91
  5. Step 5: Solve for x
    x = 133,579,283.91/13,572.63
  6. Step 6: Final answer
    x = 9,841.81

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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.