Home / 13,280.44-19,918.69-4,959.42

Finding the Fourth Proportional to 13,280.44, 19,918.69 and 4,959.42

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Solution

The fourth proportional to 13,280.44, 19,918.69 and 4,959.42 is: 7,438.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.44 : 19,918.69 = 4,959.42 : x
  2. Step 2: Convert to fraction form
    13,280.44/19,918.69 = 4,959.42/x
  3. Step 3: Cross multiply
    13,280.44x = 19,918.69 × 4,959.42
  4. Step 4: Simplify right side
    13,280.44x = 98,785,149.56
  5. Step 5: Solve for x
    x = 98,785,149.56/13,280.44
  6. Step 6: Final answer
    x = 7,438.39

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1.5x scale

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.