Home / 11,688.78-17,533.32-3,897.59

Finding the Fourth Proportional to 11,688.78, 17,533.32 and 3,897.59

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Solution

The fourth proportional to 11,688.78, 17,533.32 and 3,897.59 is: 5,846.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.78 : 17,533.32 = 3,897.59 : x
  2. Step 2: Convert to fraction form
    11,688.78/17,533.32 = 3,897.59/x
  3. Step 3: Cross multiply
    11,688.78x = 17,533.32 × 3,897.59
  4. Step 4: Simplify right side
    11,688.78x = 68,337,692.70
  5. Step 5: Solve for x
    x = 68,337,692.70/11,688.78
  6. Step 6: Final answer
    x = 5,846.44

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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.