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Finding the Fourth Proportional to 13,597.52, 18,769.26 and 8,570.21

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Solution

The fourth proportional to 13,597.52, 18,769.26 and 8,570.21 is: 11,829.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.52 : 18,769.26 = 8,570.21 : x
  2. Step 2: Convert to fraction form
    13,597.52/18,769.26 = 8,570.21/x
  3. Step 3: Cross multiply
    13,597.52x = 18,769.26 × 8,570.21
  4. Step 4: Simplify right side
    13,597.52x = 160,856,499.74
  5. Step 5: Solve for x
    x = 160,856,499.74/13,597.52
  6. Step 6: Final answer
    x = 11,829.84

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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.