Home / 9,261.45-12,786.99-5,485.83

Finding the Fourth Proportional to 9,261.45, 12,786.99 and 5,485.83

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Solution

The fourth proportional to 9,261.45, 12,786.99 and 5,485.83 is: 7,574.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.45 : 12,786.99 = 5,485.83 : x
  2. Step 2: Convert to fraction form
    9,261.45/12,786.99 = 5,485.83/x
  3. Step 3: Cross multiply
    9,261.45x = 12,786.99 × 5,485.83
  4. Step 4: Simplify right side
    9,261.45x = 70,147,253.35
  5. Step 5: Solve for x
    x = 70,147,253.35/9,261.45
  6. Step 6: Final answer
    x = 7,574.11

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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.