Home / 11,784.36-17,675.19-7,388.40

Finding the Fourth Proportional to 11,784.36, 17,675.19 and 7,388.40

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Solution

The fourth proportional to 11,784.36, 17,675.19 and 7,388.40 is: 11,081.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,784.36 : 17,675.19 = 7,388.40 : x
  2. Step 2: Convert to fraction form
    11,784.36/17,675.19 = 7,388.40/x
  3. Step 3: Cross multiply
    11,784.36x = 17,675.19 × 7,388.40
  4. Step 4: Simplify right side
    11,784.36x = 130,591,373.80
  5. Step 5: Solve for x
    x = 130,591,373.80/11,784.36
  6. Step 6: Final answer
    x = 11,081.75

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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.