Home / 7,408.36-11,113.13-2,478.02

Finding the Fourth Proportional to 7,408.36, 11,113.13 and 2,478.02

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Solution

The fourth proportional to 7,408.36, 11,113.13 and 2,478.02 is: 3,717.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,408.36 : 11,113.13 = 2,478.02 : x
  2. Step 2: Convert to fraction form
    7,408.36/11,113.13 = 2,478.02/x
  3. Step 3: Cross multiply
    7,408.36x = 11,113.13 × 2,478.02
  4. Step 4: Simplify right side
    7,408.36x = 27,538,558.40
  5. Step 5: Solve for x
    x = 27,538,558.40/7,408.36
  6. Step 6: Final answer
    x = 3,717.23

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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.