Home / 12,986.70-19,466.46-7,357.37

Finding the Fourth Proportional to 12,986.70, 19,466.46 and 7,357.37

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Solution

The fourth proportional to 12,986.70, 19,466.46 and 7,357.37 is: 11,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,986.70 : 19,466.46 = 7,357.37 : x
  2. Step 2: Convert to fraction form
    12,986.70/19,466.46 = 7,357.37/x
  3. Step 3: Cross multiply
    12,986.70x = 19,466.46 × 7,357.37
  4. Step 4: Simplify right side
    12,986.70x = 143,221,851.48
  5. Step 5: Solve for x
    x = 143,221,851.48/12,986.70
  6. Step 6: Final answer
    x = 11,028.35

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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.