Home / 11,611.80-17,420.70-5,036.48

Finding the Fourth Proportional to 11,611.80, 17,420.70 and 5,036.48

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Solution

The fourth proportional to 11,611.80, 17,420.70 and 5,036.48 is: 7,556.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.80 : 17,420.70 = 5,036.48 : x
  2. Step 2: Convert to fraction form
    11,611.80/17,420.70 = 5,036.48/x
  3. Step 3: Cross multiply
    11,611.80x = 17,420.70 × 5,036.48
  4. Step 4: Simplify right side
    11,611.80x = 87,739,007.14
  5. Step 5: Solve for x
    x = 87,739,007.14/11,611.80
  6. Step 6: Final answer
    x = 7,556.02

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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.