Home / 12,927.99-19,399.28-5,137.41

Finding the Fourth Proportional to 12,927.99, 19,399.28 and 5,137.41

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Solution

The fourth proportional to 12,927.99, 19,399.28 and 5,137.41 is: 7,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,927.99 : 19,399.28 = 5,137.41 : x
  2. Step 2: Convert to fraction form
    12,927.99/19,399.28 = 5,137.41/x
  3. Step 3: Cross multiply
    12,927.99x = 19,399.28 × 5,137.41
  4. Step 4: Simplify right side
    12,927.99x = 99,662,029.38
  5. Step 5: Solve for x
    x = 99,662,029.38/12,927.99
  6. Step 6: Final answer
    x = 7,709.01

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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.