Home / 12,411.36-18,618.26-4,087.98

Finding the Fourth Proportional to 12,411.36, 18,618.26 and 4,087.98

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Solution

The fourth proportional to 12,411.36, 18,618.26 and 4,087.98 is: 6,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,411.36 : 18,618.26 = 4,087.98 : x
  2. Step 2: Convert to fraction form
    12,411.36/18,618.26 = 4,087.98/x
  3. Step 3: Cross multiply
    12,411.36x = 18,618.26 × 4,087.98
  4. Step 4: Simplify right side
    12,411.36x = 76,111,054.07
  5. Step 5: Solve for x
    x = 76,111,054.07/12,411.36
  6. Step 6: Final answer
    x = 6,132.37

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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.