Home / 12,739.64-19,116.84-5,343.44

Finding the Fourth Proportional to 12,739.64, 19,116.84 and 5,343.44

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Solution

The fourth proportional to 12,739.64, 19,116.84 and 5,343.44 is: 8,018.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.64 : 19,116.84 = 5,343.44 : x
  2. Step 2: Convert to fraction form
    12,739.64/19,116.84 = 5,343.44/x
  3. Step 3: Cross multiply
    12,739.64x = 19,116.84 × 5,343.44
  4. Step 4: Simplify right side
    12,739.64x = 102,149,687.53
  5. Step 5: Solve for x
    x = 102,149,687.53/12,739.64
  6. Step 6: Final answer
    x = 8,018.26

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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.