Home / 7,914.96-11,868.48-2,648.14

Finding the Fourth Proportional to 7,914.96, 11,868.48 and 2,648.14

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Solution

The fourth proportional to 7,914.96, 11,868.48 and 2,648.14 is: 3,970.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,914.96 : 11,868.48 = 2,648.14 : x
  2. Step 2: Convert to fraction form
    7,914.96/11,868.48 = 2,648.14/x
  3. Step 3: Cross multiply
    7,914.96x = 11,868.48 × 2,648.14
  4. Step 4: Simplify right side
    7,914.96x = 31,429,396.63
  5. Step 5: Solve for x
    x = 31,429,396.63/7,914.96
  6. Step 6: Final answer
    x = 3,970.89

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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.