Home / 9,991.22-13,787.84-5,514.93

Finding the Fourth Proportional to 9,991.22, 13,787.84 and 5,514.93

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Solution

The fourth proportional to 9,991.22, 13,787.84 and 5,514.93 is: 7,610.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,991.22 : 13,787.84 = 5,514.93 : x
  2. Step 2: Convert to fraction form
    9,991.22/13,787.84 = 5,514.93/x
  3. Step 3: Cross multiply
    9,991.22x = 13,787.84 × 5,514.93
  4. Step 4: Simplify right side
    9,991.22x = 76,038,986.24
  5. Step 5: Solve for x
    x = 76,038,986.24/9,991.22
  6. Step 6: Final answer
    x = 7,610.58

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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.