Home / 12,759.77-19,141.12-6,181.20

Finding the Fourth Proportional to 12,759.77, 19,141.12 and 6,181.20

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Solution

The fourth proportional to 12,759.77, 19,141.12 and 6,181.20 is: 9,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,759.77 : 19,141.12 = 6,181.20 : x
  2. Step 2: Convert to fraction form
    12,759.77/19,141.12 = 6,181.20/x
  3. Step 3: Cross multiply
    12,759.77x = 19,141.12 × 6,181.20
  4. Step 4: Simplify right side
    12,759.77x = 118,315,090.94
  5. Step 5: Solve for x
    x = 118,315,090.94/12,759.77
  6. Step 6: Final answer
    x = 9,272.51

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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.