Home / 18,942.76-26,141.34-10,445.86

Finding the Fourth Proportional to 18,942.76, 26,141.34 and 10,445.86

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Solution

The fourth proportional to 18,942.76, 26,141.34 and 10,445.86 is: 14,415.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.76 : 26,141.34 = 10,445.86 : x
  2. Step 2: Convert to fraction form
    18,942.76/26,141.34 = 10,445.86/x
  3. Step 3: Cross multiply
    18,942.76x = 26,141.34 × 10,445.86
  4. Step 4: Simplify right side
    18,942.76x = 273,068,777.85
  5. Step 5: Solve for x
    x = 273,068,777.85/18,942.76
  6. Step 6: Final answer
    x = 14,415.47

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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.