Home / 13,297.44-18,347.94-7,990.32

Finding the Fourth Proportional to 13,297.44, 18,347.94 and 7,990.32

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Solution

The fourth proportional to 13,297.44, 18,347.94 and 7,990.32 is: 11,025.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.44 : 18,347.94 = 7,990.32 : x
  2. Step 2: Convert to fraction form
    13,297.44/18,347.94 = 7,990.32/x
  3. Step 3: Cross multiply
    13,297.44x = 18,347.94 × 7,990.32
  4. Step 4: Simplify right side
    13,297.44x = 146,605,911.94
  5. Step 5: Solve for x
    x = 146,605,911.94/13,297.44
  6. Step 6: Final answer
    x = 11,025.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.