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Finding the Fourth Proportional to 18,950.76, 26,146.80 and 12,236.67

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Solution

The fourth proportional to 18,950.76, 26,146.80 and 12,236.67 is: 16,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,950.76 : 26,146.80 = 12,236.67 : x
  2. Step 2: Convert to fraction form
    18,950.76/26,146.80 = 12,236.67/x
  3. Step 3: Cross multiply
    18,950.76x = 26,146.80 × 12,236.67
  4. Step 4: Simplify right side
    18,950.76x = 319,949,763.16
  5. Step 5: Solve for x
    x = 319,949,763.16/18,950.76
  6. Step 6: Final answer
    x = 16,883.22

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Double scale
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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.