Home / 13,236.28-18,266.28-7,268.50

Finding the Fourth Proportional to 13,236.28, 18,266.28 and 7,268.50

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Solution

The fourth proportional to 13,236.28, 18,266.28 and 7,268.50 is: 10,030.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,236.28 : 18,266.28 = 7,268.50 : x
  2. Step 2: Convert to fraction form
    13,236.28/18,266.28 = 7,268.50/x
  3. Step 3: Cross multiply
    13,236.28x = 18,266.28 × 7,268.50
  4. Step 4: Simplify right side
    13,236.28x = 132,768,456.18
  5. Step 5: Solve for x
    x = 132,768,456.18/13,236.28
  6. Step 6: Final answer
    x = 10,030.65

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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.