Home / 8,555.36-11,704.66-8,518.40

Finding the Fourth Proportional to 8,555.36, 11,704.66 and 8,518.40

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Solution

The fourth proportional to 8,555.36, 11,704.66 and 8,518.40 is: 11,654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.36 : 11,704.66 = 8,518.40 : x
  2. Step 2: Convert to fraction form
    8,555.36/11,704.66 = 8,518.40/x
  3. Step 3: Cross multiply
    8,555.36x = 11,704.66 × 8,518.40
  4. Step 4: Simplify right side
    8,555.36x = 99,704,975.74
  5. Step 5: Solve for x
    x = 99,704,975.74/8,555.36
  6. Step 6: Final answer
    x = 11,654.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.