Home / 12,821.31-19,220.93-5,028.27

Finding the Fourth Proportional to 12,821.31, 19,220.93 and 5,028.27

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Solution

The fourth proportional to 12,821.31, 19,220.93 and 5,028.27 is: 7,538.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,821.31 : 19,220.93 = 5,028.27 : x
  2. Step 2: Convert to fraction form
    12,821.31/19,220.93 = 5,028.27/x
  3. Step 3: Cross multiply
    12,821.31x = 19,220.93 × 5,028.27
  4. Step 4: Simplify right side
    12,821.31x = 96,648,000.55
  5. Step 5: Solve for x
    x = 96,648,000.55/12,821.31
  6. Step 6: Final answer
    x = 7,538.08

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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.