Home / 13,934.55-19,231.03-7,965.09

Finding the Fourth Proportional to 13,934.55, 19,231.03 and 7,965.09

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Solution

The fourth proportional to 13,934.55, 19,231.03 and 7,965.09 is: 10,992.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,934.55 : 19,231.03 = 7,965.09 : x
  2. Step 2: Convert to fraction form
    13,934.55/19,231.03 = 7,965.09/x
  3. Step 3: Cross multiply
    13,934.55x = 19,231.03 × 7,965.09
  4. Step 4: Simplify right side
    13,934.55x = 153,176,884.74
  5. Step 5: Solve for x
    x = 153,176,884.74/13,934.55
  6. Step 6: Final answer
    x = 10,992.60

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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.