Home / 11,157.43-15,392.39-6,907.36

Finding the Fourth Proportional to 11,157.43, 15,392.39 and 6,907.36

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Solution

The fourth proportional to 11,157.43, 15,392.39 and 6,907.36 is: 9,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.43 : 15,392.39 = 6,907.36 : x
  2. Step 2: Convert to fraction form
    11,157.43/15,392.39 = 6,907.36/x
  3. Step 3: Cross multiply
    11,157.43x = 15,392.39 × 6,907.36
  4. Step 4: Simplify right side
    11,157.43x = 106,320,778.99
  5. Step 5: Solve for x
    x = 106,320,778.99/11,157.43
  6. Step 6: Final answer
    x = 9,529.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.