Home / 13,200.78-19,803.36-4,880.82

Finding the Fourth Proportional to 13,200.78, 19,803.36 and 4,880.82

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Solution

The fourth proportional to 13,200.78, 19,803.36 and 4,880.82 is: 7,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,200.78 : 19,803.36 = 4,880.82 : x
  2. Step 2: Convert to fraction form
    13,200.78/19,803.36 = 4,880.82/x
  3. Step 3: Cross multiply
    13,200.78x = 19,803.36 × 4,880.82
  4. Step 4: Simplify right side
    13,200.78x = 96,656,635.56
  5. Step 5: Solve for x
    x = 96,656,635.56/13,200.78
  6. Step 6: Final answer
    x = 7,322.04

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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.