Home / 13,750.16-20,629.49-4,986.36

Finding the Fourth Proportional to 13,750.16, 20,629.49 and 4,986.36

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Solution

The fourth proportional to 13,750.16, 20,629.49 and 4,986.36 is: 7,481.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.16 : 20,629.49 = 4,986.36 : x
  2. Step 2: Convert to fraction form
    13,750.16/20,629.49 = 4,986.36/x
  3. Step 3: Cross multiply
    13,750.16x = 20,629.49 × 4,986.36
  4. Step 4: Simplify right side
    13,750.16x = 102,866,038.82
  5. Step 5: Solve for x
    x = 102,866,038.82/13,750.16
  6. Step 6: Final answer
    x = 7,481.08

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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.