Home / 7,445.75-11,169.78-2,515.01

Finding the Fourth Proportional to 7,445.75, 11,169.78 and 2,515.01

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Solution

The fourth proportional to 7,445.75, 11,169.78 and 2,515.01 is: 3,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,445.75 : 11,169.78 = 2,515.01 : x
  2. Step 2: Convert to fraction form
    7,445.75/11,169.78 = 2,515.01/x
  3. Step 3: Cross multiply
    7,445.75x = 11,169.78 × 2,515.01
  4. Step 4: Simplify right side
    7,445.75x = 28,092,108.40
  5. Step 5: Solve for x
    x = 28,092,108.40/7,445.75
  6. Step 6: Final answer
    x = 3,772.91

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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.