Home / 12,884.36-19,329.54-4,118.60

Finding the Fourth Proportional to 12,884.36, 19,329.54 and 4,118.60

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Solution

The fourth proportional to 12,884.36, 19,329.54 and 4,118.60 is: 6,178.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,884.36 : 19,329.54 = 4,118.60 : x
  2. Step 2: Convert to fraction form
    12,884.36/19,329.54 = 4,118.60/x
  3. Step 3: Cross multiply
    12,884.36x = 19,329.54 × 4,118.60
  4. Step 4: Simplify right side
    12,884.36x = 79,610,643.44
  5. Step 5: Solve for x
    x = 79,610,643.44/12,884.36
  6. Step 6: Final answer
    x = 6,178.86

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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.