Home / 12,087.36-18,133.47-4,296.78

Finding the Fourth Proportional to 12,087.36, 18,133.47 and 4,296.78

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Solution

The fourth proportional to 12,087.36, 18,133.47 and 4,296.78 is: 6,446.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.36 : 18,133.47 = 4,296.78 : x
  2. Step 2: Convert to fraction form
    12,087.36/18,133.47 = 4,296.78/x
  3. Step 3: Cross multiply
    12,087.36x = 18,133.47 × 4,296.78
  4. Step 4: Simplify right side
    12,087.36x = 77,915,531.23
  5. Step 5: Solve for x
    x = 77,915,531.23/12,087.36
  6. Step 6: Final answer
    x = 6,446.03

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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.