Home / 11,270.31-16,907.99-6,891.45

Finding the Fourth Proportional to 11,270.31, 16,907.99 and 6,891.45

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Solution

The fourth proportional to 11,270.31, 16,907.99 and 6,891.45 is: 10,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.31 : 16,907.99 = 6,891.45 : x
  2. Step 2: Convert to fraction form
    11,270.31/16,907.99 = 6,891.45/x
  3. Step 3: Cross multiply
    11,270.31x = 16,907.99 × 6,891.45
  4. Step 4: Simplify right side
    11,270.31x = 116,520,533.23
  5. Step 5: Solve for x
    x = 116,520,533.23/11,270.31
  6. Step 6: Final answer
    x = 10,338.72

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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.