Home / 7,513.68-11,267.94-3,128.88

Finding the Fourth Proportional to 7,513.68, 11,267.94 and 3,128.88

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Solution

The fourth proportional to 7,513.68, 11,267.94 and 3,128.88 is: 4,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,513.68 : 11,267.94 = 3,128.88 : x
  2. Step 2: Convert to fraction form
    7,513.68/11,267.94 = 3,128.88/x
  3. Step 3: Cross multiply
    7,513.68x = 11,267.94 × 3,128.88
  4. Step 4: Simplify right side
    7,513.68x = 35,256,032.11
  5. Step 5: Solve for x
    x = 35,256,032.11/7,513.68
  6. Step 6: Final answer
    x = 4,692.25

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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.