Home / 13,236.09-18,266.48-8,203.02

Finding the Fourth Proportional to 13,236.09, 18,266.48 and 8,203.02

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Solution

The fourth proportional to 13,236.09, 18,266.48 and 8,203.02 is: 11,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.09 : 18,266.48 = 8,203.02 : x
  2. Step 2: Convert to fraction form
    13,236.09/18,266.48 = 8,203.02/x
  3. Step 3: Cross multiply
    13,236.09x = 18,266.48 × 8,203.02
  4. Step 4: Simplify right side
    13,236.09x = 149,840,300.77
  5. Step 5: Solve for x
    x = 149,840,300.77/13,236.09
  6. Step 6: Final answer
    x = 11,320.59

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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.