Home / 12,618.36-18,926.10-3,383.64

Finding the Fourth Proportional to 12,618.36, 18,926.10 and 3,383.64

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Solution

The fourth proportional to 12,618.36, 18,926.10 and 3,383.64 is: 5,075.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,618.36 : 18,926.10 = 3,383.64 : x
  2. Step 2: Convert to fraction form
    12,618.36/18,926.10 = 3,383.64/x
  3. Step 3: Cross multiply
    12,618.36x = 18,926.10 × 3,383.64
  4. Step 4: Simplify right side
    12,618.36x = 64,039,109.00
  5. Step 5: Solve for x
    x = 64,039,109.00/12,618.36
  6. Step 6: Final answer
    x = 5,075.07

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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.