Home / 12,720.44-19,047.82-8,783.84

Finding the Fourth Proportional to 12,720.44, 19,047.82 and 8,783.84

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Solution

The fourth proportional to 12,720.44, 19,047.82 and 8,783.84 is: 13,153.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,720.44 : 19,047.82 = 8,783.84 : x
  2. Step 2: Convert to fraction form
    12,720.44/19,047.82 = 8,783.84/x
  3. Step 3: Cross multiply
    12,720.44x = 19,047.82 × 8,783.84
  4. Step 4: Simplify right side
    12,720.44x = 167,313,003.23
  5. Step 5: Solve for x
    x = 167,313,003.23/12,720.44
  6. Step 6: Final answer
    x = 13,153.08

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1.5x scale

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.