Home / 7,911.44-11,867.97-2,985.23

Finding the Fourth Proportional to 7,911.44, 11,867.97 and 2,985.23

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Solution

The fourth proportional to 7,911.44, 11,867.97 and 2,985.23 is: 4,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.44 : 11,867.97 = 2,985.23 : x
  2. Step 2: Convert to fraction form
    7,911.44/11,867.97 = 2,985.23/x
  3. Step 3: Cross multiply
    7,911.44x = 11,867.97 × 2,985.23
  4. Step 4: Simplify right side
    7,911.44x = 35,428,560.74
  5. Step 5: Solve for x
    x = 35,428,560.74/7,911.44
  6. Step 6: Final answer
    x = 4,478.15

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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.