Home / 12,383.32-18,554.01-8,855.41

Finding the Fourth Proportional to 12,383.32, 18,554.01 and 8,855.41

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Solution

The fourth proportional to 12,383.32, 18,554.01 and 8,855.41 is: 13,268.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383.32 : 18,554.01 = 8,855.41 : x
  2. Step 2: Convert to fraction form
    12,383.32/18,554.01 = 8,855.41/x
  3. Step 3: Cross multiply
    12,383.32x = 18,554.01 × 8,855.41
  4. Step 4: Simplify right side
    12,383.32x = 164,303,365.69
  5. Step 5: Solve for x
    x = 164,303,365.69/12,383.32
  6. Step 6: Final answer
    x = 13,268.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.