Home / 7,954.40-11,911.28-4,488.48

Finding the Fourth Proportional to 7,954.40, 11,911.28 and 4,488.48

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Solution

The fourth proportional to 7,954.40, 11,911.28 and 4,488.48 is: 6,721.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,954.40 : 11,911.28 = 4,488.48 : x
  2. Step 2: Convert to fraction form
    7,954.40/11,911.28 = 4,488.48/x
  3. Step 3: Cross multiply
    7,954.40x = 11,911.28 × 4,488.48
  4. Step 4: Simplify right side
    7,954.40x = 53,463,542.05
  5. Step 5: Solve for x
    x = 53,463,542.05/7,954.40
  6. Step 6: Final answer
    x = 6,721.25

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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.