Home / 12,415.55-18,619.37-4,094.01

Finding the Fourth Proportional to 12,415.55, 18,619.37 and 4,094.01

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Solution

The fourth proportional to 12,415.55, 18,619.37 and 4,094.01 is: 6,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,415.55 : 18,619.37 = 4,094.01 : x
  2. Step 2: Convert to fraction form
    12,415.55/18,619.37 = 4,094.01/x
  3. Step 3: Cross multiply
    12,415.55x = 18,619.37 × 4,094.01
  4. Step 4: Simplify right side
    12,415.55x = 76,227,866.50
  5. Step 5: Solve for x
    x = 76,227,866.50/12,415.55
  6. Step 6: Final answer
    x = 6,139.71

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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.