Home / 15,449.34-21,321.19-8,735.04

Finding the Fourth Proportional to 15,449.34, 21,321.19 and 8,735.04

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Solution

The fourth proportional to 15,449.34, 21,321.19 and 8,735.04 is: 12,054.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,449.34 : 21,321.19 = 8,735.04 : x
  2. Step 2: Convert to fraction form
    15,449.34/21,321.19 = 8,735.04/x
  3. Step 3: Cross multiply
    15,449.34x = 21,321.19 × 8,735.04
  4. Step 4: Simplify right side
    15,449.34x = 186,241,297.22
  5. Step 5: Solve for x
    x = 186,241,297.22/15,449.34
  6. Step 6: Final answer
    x = 12,054.97

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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.