Home / 19,670.76-27,137.10-11,708.52

Finding the Fourth Proportional to 19,670.76, 27,137.10 and 11,708.52

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Solution

The fourth proportional to 19,670.76, 27,137.10 and 11,708.52 is: 16,152.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.76 : 27,137.10 = 11,708.52 : x
  2. Step 2: Convert to fraction form
    19,670.76/27,137.10 = 11,708.52/x
  3. Step 3: Cross multiply
    19,670.76x = 27,137.10 × 11,708.52
  4. Step 4: Simplify right side
    19,670.76x = 317,735,278.09
  5. Step 5: Solve for x
    x = 317,735,278.09/19,670.76
  6. Step 6: Final answer
    x = 16,152.67

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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.