Home / 13,653.20-18,836.72-8,277.37

Finding the Fourth Proportional to 13,653.20, 18,836.72 and 8,277.37

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Solution

The fourth proportional to 13,653.20, 18,836.72 and 8,277.37 is: 11,419.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,653.20 : 18,836.72 = 8,277.37 : x
  2. Step 2: Convert to fraction form
    13,653.20/18,836.72 = 8,277.37/x
  3. Step 3: Cross multiply
    13,653.20x = 18,836.72 × 8,277.37
  4. Step 4: Simplify right side
    13,653.20x = 155,918,501.03
  5. Step 5: Solve for x
    x = 155,918,501.03/13,653.20
  6. Step 6: Final answer
    x = 11,419.92

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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.