Home / 11,880.24-17,805.96-4,477.20

Finding the Fourth Proportional to 11,880.24, 17,805.96 and 4,477.20

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Solution

The fourth proportional to 11,880.24, 17,805.96 and 4,477.20 is: 6,710.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.24 : 17,805.96 = 4,477.20 : x
  2. Step 2: Convert to fraction form
    11,880.24/17,805.96 = 4,477.20/x
  3. Step 3: Cross multiply
    11,880.24x = 17,805.96 × 4,477.20
  4. Step 4: Simplify right side
    11,880.24x = 79,720,844.11
  5. Step 5: Solve for x
    x = 79,720,844.11/11,880.24
  6. Step 6: Final answer
    x = 6,710.37

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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.