Home / 13,548.21-18,690.22-8,769.70

Finding the Fourth Proportional to 13,548.21, 18,690.22 and 8,769.70

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Solution

The fourth proportional to 13,548.21, 18,690.22 and 8,769.70 is: 12,098.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,548.21 : 18,690.22 = 8,769.70 : x
  2. Step 2: Convert to fraction form
    13,548.21/18,690.22 = 8,769.70/x
  3. Step 3: Cross multiply
    13,548.21x = 18,690.22 × 8,769.70
  4. Step 4: Simplify right side
    13,548.21x = 163,907,485.03
  5. Step 5: Solve for x
    x = 163,907,485.03/13,548.21
  6. Step 6: Final answer
    x = 12,098.09

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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.