Home / 13,119.22-19,647.51-7,261.30

Finding the Fourth Proportional to 13,119.22, 19,647.51 and 7,261.30

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Solution

The fourth proportional to 13,119.22, 19,647.51 and 7,261.30 is: 10,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.22 : 19,647.51 = 7,261.30 : x
  2. Step 2: Convert to fraction form
    13,119.22/19,647.51 = 7,261.30/x
  3. Step 3: Cross multiply
    13,119.22x = 19,647.51 × 7,261.30
  4. Step 4: Simplify right side
    13,119.22x = 142,666,464.36
  5. Step 5: Solve for x
    x = 142,666,464.36/13,119.22
  6. Step 6: Final answer
    x = 10,874.61

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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.