Home / 8,991.15-13,485.24-2,749.56

Finding the Fourth Proportional to 8,991.15, 13,485.24 and 2,749.56

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Solution

The fourth proportional to 8,991.15, 13,485.24 and 2,749.56 is: 4,123.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,991.15 : 13,485.24 = 2,749.56 : x
  2. Step 2: Convert to fraction form
    8,991.15/13,485.24 = 2,749.56/x
  3. Step 3: Cross multiply
    8,991.15x = 13,485.24 × 2,749.56
  4. Step 4: Simplify right side
    8,991.15x = 37,078,476.49
  5. Step 5: Solve for x
    x = 37,078,476.49/8,991.15
  6. Step 6: Final answer
    x = 4,123.89

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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.