Home / 11,808.12-16,277.40-9,708.60

Finding the Fourth Proportional to 11,808.12, 16,277.40 and 9,708.60

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Solution

The fourth proportional to 11,808.12, 16,277.40 and 9,708.60 is: 13,383.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.12 : 16,277.40 = 9,708.60 : x
  2. Step 2: Convert to fraction form
    11,808.12/16,277.40 = 9,708.60/x
  3. Step 3: Cross multiply
    11,808.12x = 16,277.40 × 9,708.60
  4. Step 4: Simplify right side
    11,808.12x = 158,030,765.64
  5. Step 5: Solve for x
    x = 158,030,765.64/11,808.12
  6. Step 6: Final answer
    x = 13,383.23

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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.