Home / 7,759.05-11,631.48-4,986.42

Finding the Fourth Proportional to 7,759.05, 11,631.48 and 4,986.42

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Solution

The fourth proportional to 7,759.05, 11,631.48 and 4,986.42 is: 7,475.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,759.05 : 11,631.48 = 4,986.42 : x
  2. Step 2: Convert to fraction form
    7,759.05/11,631.48 = 4,986.42/x
  3. Step 3: Cross multiply
    7,759.05x = 11,631.48 × 4,986.42
  4. Step 4: Simplify right side
    7,759.05x = 57,999,444.50
  5. Step 5: Solve for x
    x = 57,999,444.50/7,759.05
  6. Step 6: Final answer
    x = 7,475.07

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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.