Home / 7,965.21-10,992.49-5,274.69

Finding the Fourth Proportional to 7,965.21, 10,992.49 and 5,274.69

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Solution

The fourth proportional to 7,965.21, 10,992.49 and 5,274.69 is: 7,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.21 : 10,992.49 = 5,274.69 : x
  2. Step 2: Convert to fraction form
    7,965.21/10,992.49 = 5,274.69/x
  3. Step 3: Cross multiply
    7,965.21x = 10,992.49 × 5,274.69
  4. Step 4: Simplify right side
    7,965.21x = 57,981,946.31
  5. Step 5: Solve for x
    x = 57,981,946.31/7,965.21
  6. Step 6: Final answer
    x = 7,279.40

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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.