Home / 12,972.08-19,453.26-6,401.36

Finding the Fourth Proportional to 12,972.08, 19,453.26 and 6,401.36

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Solution

The fourth proportional to 12,972.08, 19,453.26 and 6,401.36 is: 9,599.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,972.08 : 19,453.26 = 6,401.36 : x
  2. Step 2: Convert to fraction form
    12,972.08/19,453.26 = 6,401.36/x
  3. Step 3: Cross multiply
    12,972.08x = 19,453.26 × 6,401.36
  4. Step 4: Simplify right side
    12,972.08x = 124,527,320.43
  5. Step 5: Solve for x
    x = 124,527,320.43/12,972.08
  6. Step 6: Final answer
    x = 9,599.64

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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.