Home / 18,538.58-25,562.74-11,813.55

Finding the Fourth Proportional to 18,538.58, 25,562.74 and 11,813.55

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Solution

The fourth proportional to 18,538.58, 25,562.74 and 11,813.55 is: 16,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.58 : 25,562.74 = 11,813.55 : x
  2. Step 2: Convert to fraction form
    18,538.58/25,562.74 = 11,813.55/x
  3. Step 3: Cross multiply
    18,538.58x = 25,562.74 × 11,813.55
  4. Step 4: Simplify right side
    18,538.58x = 301,986,795.60
  5. Step 5: Solve for x
    x = 301,986,795.60/18,538.58
  6. Step 6: Final answer
    x = 16,289.64

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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.