Home / 18,943.76-26,142.52-10,446.20

Finding the Fourth Proportional to 18,943.76, 26,142.52 and 10,446.20

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Solution

The fourth proportional to 18,943.76, 26,142.52 and 10,446.20 is: 14,415.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,943.76 : 26,142.52 = 10,446.20 : x
  2. Step 2: Convert to fraction form
    18,943.76/26,142.52 = 10,446.20/x
  3. Step 3: Cross multiply
    18,943.76x = 26,142.52 × 10,446.20
  4. Step 4: Simplify right side
    18,943.76x = 273,089,992.42
  5. Step 5: Solve for x
    x = 273,089,992.42/18,943.76
  6. Step 6: Final answer
    x = 14,415.83

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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.