Home / 11,424.40-17,139.84-6,926.47

Finding the Fourth Proportional to 11,424.40, 17,139.84 and 6,926.47

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Solution

The fourth proportional to 11,424.40, 17,139.84 and 6,926.47 is: 10,391.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,424.40 : 17,139.84 = 6,926.47 : x
  2. Step 2: Convert to fraction form
    11,424.40/17,139.84 = 6,926.47/x
  3. Step 3: Cross multiply
    11,424.40x = 17,139.84 × 6,926.47
  4. Step 4: Simplify right side
    11,424.40x = 118,718,587.56
  5. Step 5: Solve for x
    x = 118,718,587.56/11,424.40
  6. Step 6: Final answer
    x = 10,391.67

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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.