Home / 12,936.34-19,406.14-5,039.02

Finding the Fourth Proportional to 12,936.34, 19,406.14 and 5,039.02

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Solution

The fourth proportional to 12,936.34, 19,406.14 and 5,039.02 is: 7,559.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.34 : 19,406.14 = 5,039.02 : x
  2. Step 2: Convert to fraction form
    12,936.34/19,406.14 = 5,039.02/x
  3. Step 3: Cross multiply
    12,936.34x = 19,406.14 × 5,039.02
  4. Step 4: Simplify right side
    12,936.34x = 97,787,927.58
  5. Step 5: Solve for x
    x = 97,787,927.58/12,936.34
  6. Step 6: Final answer
    x = 7,559.16

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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.