Home / 7,511.10-11,266.67-3,128.50

Finding the Fourth Proportional to 7,511.10, 11,266.67 and 3,128.50

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Solution

The fourth proportional to 7,511.10, 11,266.67 and 3,128.50 is: 4,692.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.10 : 11,266.67 = 3,128.50 : x
  2. Step 2: Convert to fraction form
    7,511.10/11,266.67 = 3,128.50/x
  3. Step 3: Cross multiply
    7,511.10x = 11,266.67 × 3,128.50
  4. Step 4: Simplify right side
    7,511.10x = 35,247,777.10
  5. Step 5: Solve for x
    x = 35,247,777.10/7,511.10
  6. Step 6: Final answer
    x = 4,692.76

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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.