Home / 13,139.96-19,739.10-12,725.24

Finding the Fourth Proportional to 13,139.96, 19,739.10 and 12,725.24

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Solution

The fourth proportional to 13,139.96, 19,739.10 and 12,725.24 is: 19,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,139.96 : 19,739.10 = 12,725.24 : x
  2. Step 2: Convert to fraction form
    13,139.96/19,739.10 = 12,725.24/x
  3. Step 3: Cross multiply
    13,139.96x = 19,739.10 × 12,725.24
  4. Step 4: Simplify right side
    13,139.96x = 251,184,784.88
  5. Step 5: Solve for x
    x = 251,184,784.88/13,139.96
  6. Step 6: Final answer
    x = 19,116.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.