Home / 8,770.24-12,102.78-4,790.98

Finding the Fourth Proportional to 8,770.24, 12,102.78 and 4,790.98

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Solution

The fourth proportional to 8,770.24, 12,102.78 and 4,790.98 is: 6,611.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.24 : 12,102.78 = 4,790.98 : x
  2. Step 2: Convert to fraction form
    8,770.24/12,102.78 = 4,790.98/x
  3. Step 3: Cross multiply
    8,770.24x = 12,102.78 × 4,790.98
  4. Step 4: Simplify right side
    8,770.24x = 57,984,176.92
  5. Step 5: Solve for x
    x = 57,984,176.92/8,770.24
  6. Step 6: Final answer
    x = 6,611.47

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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.