Home / 12,368.88-18,553.32-3,603.60

Finding the Fourth Proportional to 12,368.88, 18,553.32 and 3,603.60

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Solution

The fourth proportional to 12,368.88, 18,553.32 and 3,603.60 is: 5,405.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.88 : 18,553.32 = 3,603.60 : x
  2. Step 2: Convert to fraction form
    12,368.88/18,553.32 = 3,603.60/x
  3. Step 3: Cross multiply
    12,368.88x = 18,553.32 × 3,603.60
  4. Step 4: Simplify right side
    12,368.88x = 66,858,743.95
  5. Step 5: Solve for x
    x = 66,858,743.95/12,368.88
  6. Step 6: Final answer
    x = 5,405.40

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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.