Home / 11,775.81-17,663.27-3,984.63

Finding the Fourth Proportional to 11,775.81, 17,663.27 and 3,984.63

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Solution

The fourth proportional to 11,775.81, 17,663.27 and 3,984.63 is: 5,976.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,775.81 : 17,663.27 = 3,984.63 : x
  2. Step 2: Convert to fraction form
    11,775.81/17,663.27 = 3,984.63/x
  3. Step 3: Cross multiply
    11,775.81x = 17,663.27 × 3,984.63
  4. Step 4: Simplify right side
    11,775.81x = 70,381,509.38
  5. Step 5: Solve for x
    x = 70,381,509.38/11,775.81
  6. Step 6: Final answer
    x = 5,976.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.