Home / 10,770.57-16,163.96-4,931.28

Finding the Fourth Proportional to 10,770.57, 16,163.96 and 4,931.28

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Solution

The fourth proportional to 10,770.57, 16,163.96 and 4,931.28 is: 7,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,770.57 : 16,163.96 = 4,931.28 : x
  2. Step 2: Convert to fraction form
    10,770.57/16,163.96 = 4,931.28/x
  3. Step 3: Cross multiply
    10,770.57x = 16,163.96 × 4,931.28
  4. Step 4: Simplify right side
    10,770.57x = 79,708,988.01
  5. Step 5: Solve for x
    x = 79,708,988.01/10,770.57
  6. Step 6: Final answer
    x = 7,400.63

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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.