Home / 11,257.08-16,860.54-7,960.20

Finding the Fourth Proportional to 11,257.08, 16,860.54 and 7,960.20

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Solution

The fourth proportional to 11,257.08, 16,860.54 and 7,960.20 is: 11,922.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.08 : 16,860.54 = 7,960.20 : x
  2. Step 2: Convert to fraction form
    11,257.08/16,860.54 = 7,960.20/x
  3. Step 3: Cross multiply
    11,257.08x = 16,860.54 × 7,960.20
  4. Step 4: Simplify right side
    11,257.08x = 134,213,270.51
  5. Step 5: Solve for x
    x = 134,213,270.51/11,257.08
  6. Step 6: Final answer
    x = 11,922.57

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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.