Home / 11,028.24-15,211.40-7,047.58

Finding the Fourth Proportional to 11,028.24, 15,211.40 and 7,047.58

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Solution

The fourth proportional to 11,028.24, 15,211.40 and 7,047.58 is: 9,720.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,028.24 : 15,211.40 = 7,047.58 : x
  2. Step 2: Convert to fraction form
    11,028.24/15,211.40 = 7,047.58/x
  3. Step 3: Cross multiply
    11,028.24x = 15,211.40 × 7,047.58
  4. Step 4: Simplify right side
    11,028.24x = 107,203,558.41
  5. Step 5: Solve for x
    x = 107,203,558.41/11,028.24
  6. Step 6: Final answer
    x = 9,720.82

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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.