Home / 9,078.74-13,612.87-3,525.59

Finding the Fourth Proportional to 9,078.74, 13,612.87 and 3,525.59

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Solution

The fourth proportional to 9,078.74, 13,612.87 and 3,525.59 is: 5,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.74 : 13,612.87 = 3,525.59 : x
  2. Step 2: Convert to fraction form
    9,078.74/13,612.87 = 3,525.59/x
  3. Step 3: Cross multiply
    9,078.74x = 13,612.87 × 3,525.59
  4. Step 4: Simplify right side
    9,078.74x = 47,993,423.56
  5. Step 5: Solve for x
    x = 47,993,423.56/9,078.74
  6. Step 6: Final answer
    x = 5,286.35

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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.