Home / 13,783.48-20,673.30-5,991.28

Finding the Fourth Proportional to 13,783.48, 20,673.30 and 5,991.28

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Solution

The fourth proportional to 13,783.48, 20,673.30 and 5,991.28 is: 8,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.48 : 20,673.30 = 5,991.28 : x
  2. Step 2: Convert to fraction form
    13,783.48/20,673.30 = 5,991.28/x
  3. Step 3: Cross multiply
    13,783.48x = 20,673.30 × 5,991.28
  4. Step 4: Simplify right side
    13,783.48x = 123,859,528.82
  5. Step 5: Solve for x
    x = 123,859,528.82/13,783.48
  6. Step 6: Final answer
    x = 8,986.09

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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.