Home / 11,361.52-15,679.26-7,111.24

Finding the Fourth Proportional to 11,361.52, 15,679.26 and 7,111.24

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Solution

The fourth proportional to 11,361.52, 15,679.26 and 7,111.24 is: 9,813.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,361.52 : 15,679.26 = 7,111.24 : x
  2. Step 2: Convert to fraction form
    11,361.52/15,679.26 = 7,111.24/x
  3. Step 3: Cross multiply
    11,361.52x = 15,679.26 × 7,111.24
  4. Step 4: Simplify right side
    11,361.52x = 111,498,980.88
  5. Step 5: Solve for x
    x = 111,498,980.88/11,361.52
  6. Step 6: Final answer
    x = 9,813.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.