Home / 9,120.35-13,675.05-4,431.12

Finding the Fourth Proportional to 9,120.35, 13,675.05 and 4,431.12

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Solution

The fourth proportional to 9,120.35, 13,675.05 and 4,431.12 is: 6,644.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,120.35 : 13,675.05 = 4,431.12 : x
  2. Step 2: Convert to fraction form
    9,120.35/13,675.05 = 4,431.12/x
  3. Step 3: Cross multiply
    9,120.35x = 13,675.05 × 4,431.12
  4. Step 4: Simplify right side
    9,120.35x = 60,595,787.56
  5. Step 5: Solve for x
    x = 60,595,787.56/9,120.35
  6. Step 6: Final answer
    x = 6,644.02

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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.