Home / 8,631.88-11,911.93-4,905.88

Finding the Fourth Proportional to 8,631.88, 11,911.93 and 4,905.88

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Solution

The fourth proportional to 8,631.88, 11,911.93 and 4,905.88 is: 6,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.88 : 11,911.93 = 4,905.88 : x
  2. Step 2: Convert to fraction form
    8,631.88/11,911.93 = 4,905.88/x
  3. Step 3: Cross multiply
    8,631.88x = 11,911.93 × 4,905.88
  4. Step 4: Simplify right side
    8,631.88x = 58,438,499.15
  5. Step 5: Solve for x
    x = 58,438,499.15/8,631.88
  6. Step 6: Final answer
    x = 6,770.08

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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.