Home / 13,028.51-19,568.90-7,773.78

Finding the Fourth Proportional to 13,028.51, 19,568.90 and 7,773.78

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Solution

The fourth proportional to 13,028.51, 19,568.90 and 7,773.78 is: 11,676.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,028.51 : 19,568.90 = 7,773.78 : x
  2. Step 2: Convert to fraction form
    13,028.51/19,568.90 = 7,773.78/x
  3. Step 3: Cross multiply
    13,028.51x = 19,568.90 × 7,773.78
  4. Step 4: Simplify right side
    13,028.51x = 152,124,323.44
  5. Step 5: Solve for x
    x = 152,124,323.44/13,028.51
  6. Step 6: Final answer
    x = 11,676.27

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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.