Home / 11,380.76-15,713.18-7,133.56

Finding the Fourth Proportional to 11,380.76, 15,713.18 and 7,133.56

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Solution

The fourth proportional to 11,380.76, 15,713.18 and 7,133.56 is: 9,849.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.76 : 15,713.18 = 7,133.56 : x
  2. Step 2: Convert to fraction form
    11,380.76/15,713.18 = 7,133.56/x
  3. Step 3: Cross multiply
    11,380.76x = 15,713.18 × 7,133.56
  4. Step 4: Simplify right side
    11,380.76x = 112,090,912.32
  5. Step 5: Solve for x
    x = 112,090,912.32/11,380.76
  6. Step 6: Final answer
    x = 9,849.16

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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.