Home / 10,015.88-13,821.35-5,539.37

Finding the Fourth Proportional to 10,015.88, 13,821.35 and 5,539.37

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Solution

The fourth proportional to 10,015.88, 13,821.35 and 5,539.37 is: 7,644.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.88 : 13,821.35 = 5,539.37 : x
  2. Step 2: Convert to fraction form
    10,015.88/13,821.35 = 5,539.37/x
  3. Step 3: Cross multiply
    10,015.88x = 13,821.35 × 5,539.37
  4. Step 4: Simplify right side
    10,015.88x = 76,561,474.75
  5. Step 5: Solve for x
    x = 76,561,474.75/10,015.88
  6. Step 6: Final answer
    x = 7,644.01

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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.