Home / 11,133.96-15,359.40-7,591.56

Finding the Fourth Proportional to 11,133.96, 15,359.40 and 7,591.56

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Solution

The fourth proportional to 11,133.96, 15,359.40 and 7,591.56 is: 10,472.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.96 : 15,359.40 = 7,591.56 : x
  2. Step 2: Convert to fraction form
    11,133.96/15,359.40 = 7,591.56/x
  3. Step 3: Cross multiply
    11,133.96x = 15,359.40 × 7,591.56
  4. Step 4: Simplify right side
    11,133.96x = 116,601,806.66
  5. Step 5: Solve for x
    x = 116,601,806.66/11,133.96
  6. Step 6: Final answer
    x = 10,472.63

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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.