Home / 9,321.20-13,975.14-4,388.30

Finding the Fourth Proportional to 9,321.20, 13,975.14 and 4,388.30

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Solution

The fourth proportional to 9,321.20, 13,975.14 and 4,388.30 is: 6,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.20 : 13,975.14 = 4,388.30 : x
  2. Step 2: Convert to fraction form
    9,321.20/13,975.14 = 4,388.30/x
  3. Step 3: Cross multiply
    9,321.20x = 13,975.14 × 4,388.30
  4. Step 4: Simplify right side
    9,321.20x = 61,327,106.86
  5. Step 5: Solve for x
    x = 61,327,106.86/9,321.20
  6. Step 6: Final answer
    x = 6,579.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.