Home / 15,775.94-21,771.07-10,196.66

Finding the Fourth Proportional to 15,775.94, 21,771.07 and 10,196.66

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Solution

The fourth proportional to 15,775.94, 21,771.07 and 10,196.66 is: 14,071.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,775.94 : 21,771.07 = 10,196.66 : x
  2. Step 2: Convert to fraction form
    15,775.94/21,771.07 = 10,196.66/x
  3. Step 3: Cross multiply
    15,775.94x = 21,771.07 × 10,196.66
  4. Step 4: Simplify right side
    15,775.94x = 221,992,147.64
  5. Step 5: Solve for x
    x = 221,992,147.64/15,775.94
  6. Step 6: Final answer
    x = 14,071.56

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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.