Home / 15,394.32-21,245.04-8,682.84

Finding the Fourth Proportional to 15,394.32, 21,245.04 and 8,682.84

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Solution

The fourth proportional to 15,394.32, 21,245.04 and 8,682.84 is: 11,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,394.32 : 21,245.04 = 8,682.84 : x
  2. Step 2: Convert to fraction form
    15,394.32/21,245.04 = 8,682.84/x
  3. Step 3: Cross multiply
    15,394.32x = 21,245.04 × 8,682.84
  4. Step 4: Simplify right side
    15,394.32x = 184,467,283.11
  5. Step 5: Solve for x
    x = 184,467,283.11/15,394.32
  6. Step 6: Final answer
    x = 11,982.81

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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.