Home / 8,955.72-13,418.46-5,485.68

Finding the Fourth Proportional to 8,955.72, 13,418.46 and 5,485.68

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Solution

The fourth proportional to 8,955.72, 13,418.46 and 5,485.68 is: 8,219.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.72 : 13,418.46 = 5,485.68 : x
  2. Step 2: Convert to fraction form
    8,955.72/13,418.46 = 5,485.68/x
  3. Step 3: Cross multiply
    8,955.72x = 13,418.46 × 5,485.68
  4. Step 4: Simplify right side
    8,955.72x = 73,609,377.65
  5. Step 5: Solve for x
    x = 73,609,377.65/8,955.72
  6. Step 6: Final answer
    x = 8,219.26

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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.