Home / 18,942.76-26,130.30-11,856.88

Finding the Fourth Proportional to 18,942.76, 26,130.30 and 11,856.88

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Solution

The fourth proportional to 18,942.76, 26,130.30 and 11,856.88 is: 16,355.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.76 : 26,130.30 = 11,856.88 : x
  2. Step 2: Convert to fraction form
    18,942.76/26,130.30 = 11,856.88/x
  3. Step 3: Cross multiply
    18,942.76x = 26,130.30 × 11,856.88
  4. Step 4: Simplify right side
    18,942.76x = 309,823,831.46
  5. Step 5: Solve for x
    x = 309,823,831.46/18,942.76
  6. Step 6: Final answer
    x = 16,355.79

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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.