Home / 7,911.82-11,852.08-6,432.69

Finding the Fourth Proportional to 7,911.82, 11,852.08 and 6,432.69

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Solution

The fourth proportional to 7,911.82, 11,852.08 and 6,432.69 is: 9,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,911.82 : 11,852.08 = 6,432.69 : x
  2. Step 2: Convert to fraction form
    7,911.82/11,852.08 = 6,432.69/x
  3. Step 3: Cross multiply
    7,911.82x = 11,852.08 × 6,432.69
  4. Step 4: Simplify right side
    7,911.82x = 76,240,784.86
  5. Step 5: Solve for x
    x = 76,240,784.86/7,911.82
  6. Step 6: Final answer
    x = 9,636.31

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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.