Home / 11,485.40-17,223.84-4,087.87

Finding the Fourth Proportional to 11,485.40, 17,223.84 and 4,087.87

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Solution

The fourth proportional to 11,485.40, 17,223.84 and 4,087.87 is: 6,130.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.40 : 17,223.84 = 4,087.87 : x
  2. Step 2: Convert to fraction form
    11,485.40/17,223.84 = 4,087.87/x
  3. Step 3: Cross multiply
    11,485.40x = 17,223.84 × 4,087.87
  4. Step 4: Simplify right side
    11,485.40x = 70,408,775.76
  5. Step 5: Solve for x
    x = 70,408,775.76/11,485.40
  6. Step 6: Final answer
    x = 6,130.29

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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.