Home / 8,530.48-11,782.56-6,168.88

Finding the Fourth Proportional to 8,530.48, 11,782.56 and 6,168.88

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Solution

The fourth proportional to 8,530.48, 11,782.56 and 6,168.88 is: 8,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.48 : 11,782.56 = 6,168.88 : x
  2. Step 2: Convert to fraction form
    8,530.48/11,782.56 = 6,168.88/x
  3. Step 3: Cross multiply
    8,530.48x = 11,782.56 × 6,168.88
  4. Step 4: Simplify right side
    8,530.48x = 72,685,198.73
  5. Step 5: Solve for x
    x = 72,685,198.73/8,530.48
  6. Step 6: Final answer
    x = 8,520.65

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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.