Home / 15,398.06-21,249.42-8,683.03

Finding the Fourth Proportional to 15,398.06, 21,249.42 and 8,683.03

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Solution

The fourth proportional to 15,398.06, 21,249.42 and 8,683.03 is: 11,982.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,398.06 : 21,249.42 = 8,683.03 : x
  2. Step 2: Convert to fraction form
    15,398.06/21,249.42 = 8,683.03/x
  3. Step 3: Cross multiply
    15,398.06x = 21,249.42 × 8,683.03
  4. Step 4: Simplify right side
    15,398.06x = 184,509,351.34
  5. Step 5: Solve for x
    x = 184,509,351.34/15,398.06
  6. Step 6: Final answer
    x = 11,982.64

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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.