Home / 7,945.28-10,965.80-4,409.63

Finding the Fourth Proportional to 7,945.28, 10,965.80 and 4,409.63

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Solution

The fourth proportional to 7,945.28, 10,965.80 and 4,409.63 is: 6,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,945.28 : 10,965.80 = 4,409.63 : x
  2. Step 2: Convert to fraction form
    7,945.28/10,965.80 = 4,409.63/x
  3. Step 3: Cross multiply
    7,945.28x = 10,965.80 × 4,409.63
  4. Step 4: Simplify right side
    7,945.28x = 48,355,117.97
  5. Step 5: Solve for x
    x = 48,355,117.97/7,945.28
  6. Step 6: Final answer
    x = 6,086.02

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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.