Home / 7,995.48-11,991.40-2,152.56

Finding the Fourth Proportional to 7,995.48, 11,991.40 and 2,152.56

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Solution

The fourth proportional to 7,995.48, 11,991.40 and 2,152.56 is: 3,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.48 : 11,991.40 = 2,152.56 : x
  2. Step 2: Convert to fraction form
    7,995.48/11,991.40 = 2,152.56/x
  3. Step 3: Cross multiply
    7,995.48x = 11,991.40 × 2,152.56
  4. Step 4: Simplify right side
    7,995.48x = 25,812,207.98
  5. Step 5: Solve for x
    x = 25,812,207.98/7,995.48
  6. Step 6: Final answer
    x = 3,228.35

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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.