Home / 11,808.16-16,277.36-9,708.64

Finding the Fourth Proportional to 11,808.16, 16,277.36 and 9,708.64

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Solution

The fourth proportional to 11,808.16, 16,277.36 and 9,708.64 is: 13,383.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.16 : 16,277.36 = 9,708.64 : x
  2. Step 2: Convert to fraction form
    11,808.16/16,277.36 = 9,708.64/x
  3. Step 3: Cross multiply
    11,808.16x = 16,277.36 × 9,708.64
  4. Step 4: Simplify right side
    11,808.16x = 158,031,028.39
  5. Step 5: Solve for x
    x = 158,031,028.39/11,808.16
  6. Step 6: Final answer
    x = 13,383.21

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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.