Home / 19,913.79-27,481.76-10,961.67

Finding the Fourth Proportional to 19,913.79, 27,481.76 and 10,961.67

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Solution

The fourth proportional to 19,913.79, 27,481.76 and 10,961.67 is: 15,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,913.79 : 27,481.76 = 10,961.67 : x
  2. Step 2: Convert to fraction form
    19,913.79/27,481.76 = 10,961.67/x
  3. Step 3: Cross multiply
    19,913.79x = 27,481.76 × 10,961.67
  4. Step 4: Simplify right side
    19,913.79x = 301,246,011.54
  5. Step 5: Solve for x
    x = 301,246,011.54/19,913.79
  6. Step 6: Final answer
    x = 15,127.51

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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.