Home / 7,965.27-10,985.49-6,684.12

Finding the Fourth Proportional to 7,965.27, 10,985.49 and 6,684.12

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Solution

The fourth proportional to 7,965.27, 10,985.49 and 6,684.12 is: 9,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.27 : 10,985.49 = 6,684.12 : x
  2. Step 2: Convert to fraction form
    7,965.27/10,985.49 = 6,684.12/x
  3. Step 3: Cross multiply
    7,965.27x = 10,985.49 × 6,684.12
  4. Step 4: Simplify right side
    7,965.27x = 73,428,333.42
  5. Step 5: Solve for x
    x = 73,428,333.42/7,965.27
  6. Step 6: Final answer
    x = 9,218.56

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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.