Home / 8,972.36-13,456.21-3,424.06

Finding the Fourth Proportional to 8,972.36, 13,456.21 and 3,424.06

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Solution

The fourth proportional to 8,972.36, 13,456.21 and 3,424.06 is: 5,135.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,972.36 : 13,456.21 = 3,424.06 : x
  2. Step 2: Convert to fraction form
    8,972.36/13,456.21 = 3,424.06/x
  3. Step 3: Cross multiply
    8,972.36x = 13,456.21 × 3,424.06
  4. Step 4: Simplify right side
    8,972.36x = 46,074,870.41
  5. Step 5: Solve for x
    x = 46,074,870.41/8,972.36
  6. Step 6: Final answer
    x = 5,135.20

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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.