Home / 13,236.52-18,272.64-8,528.80

Finding the Fourth Proportional to 13,236.52, 18,272.64 and 8,528.80

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Solution

The fourth proportional to 13,236.52, 18,272.64 and 8,528.80 is: 11,773.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.52 : 18,272.64 = 8,528.80 : x
  2. Step 2: Convert to fraction form
    13,236.52/18,272.64 = 8,528.80/x
  3. Step 3: Cross multiply
    13,236.52x = 18,272.64 × 8,528.80
  4. Step 4: Simplify right side
    13,236.52x = 155,843,692.03
  5. Step 5: Solve for x
    x = 155,843,692.03/13,236.52
  6. Step 6: Final answer
    x = 11,773.77

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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.