Home / 9,438.12-13,021.56-5,245.56

Finding the Fourth Proportional to 9,438.12, 13,021.56 and 5,245.56

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Solution

The fourth proportional to 9,438.12, 13,021.56 and 5,245.56 is: 7,237.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.12 : 13,021.56 = 5,245.56 : x
  2. Step 2: Convert to fraction form
    9,438.12/13,021.56 = 5,245.56/x
  3. Step 3: Cross multiply
    9,438.12x = 13,021.56 × 5,245.56
  4. Step 4: Simplify right side
    9,438.12x = 68,305,374.27
  5. Step 5: Solve for x
    x = 68,305,374.27/9,438.12
  6. Step 6: Final answer
    x = 7,237.18

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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.