Home / 7,770.42-11,645.21-4,255.14

Finding the Fourth Proportional to 7,770.42, 11,645.21 and 4,255.14

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Solution

The fourth proportional to 7,770.42, 11,645.21 and 4,255.14 is: 6,377.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.42 : 11,645.21 = 4,255.14 : x
  2. Step 2: Convert to fraction form
    7,770.42/11,645.21 = 4,255.14/x
  3. Step 3: Cross multiply
    7,770.42x = 11,645.21 × 4,255.14
  4. Step 4: Simplify right side
    7,770.42x = 49,551,977.60
  5. Step 5: Solve for x
    x = 49,551,977.60/7,770.42
  6. Step 6: Final answer
    x = 6,377.00

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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.