Home / 26,783.43-40,182.99-11,989.05

Finding the Fourth Proportional to 26,783.43, 40,182.99 and 11,989.05

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Solution

The fourth proportional to 26,783.43, 40,182.99 and 11,989.05 is: 17,987.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,783.43 : 40,182.99 = 11,989.05 : x
  2. Step 2: Convert to fraction form
    26,783.43/40,182.99 = 11,989.05/x
  3. Step 3: Cross multiply
    26,783.43x = 40,182.99 × 11,989.05
  4. Step 4: Simplify right side
    26,783.43x = 481,755,680.61
  5. Step 5: Solve for x
    x = 481,755,680.61/26,783.43
  6. Step 6: Final answer
    x = 17,987.08

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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.