Home / 7,712.16-11,567.52-3,328.80

Finding the Fourth Proportional to 7,712.16, 11,567.52 and 3,328.80

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Solution

The fourth proportional to 7,712.16, 11,567.52 and 3,328.80 is: 4,992.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.16 : 11,567.52 = 3,328.80 : x
  2. Step 2: Convert to fraction form
    7,712.16/11,567.52 = 3,328.80/x
  3. Step 3: Cross multiply
    7,712.16x = 11,567.52 × 3,328.80
  4. Step 4: Simplify right side
    7,712.16x = 38,505,960.58
  5. Step 5: Solve for x
    x = 38,505,960.58/7,712.16
  6. Step 6: Final answer
    x = 4,992.89

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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.