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Finding the Fourth Proportional to 18,944, 26,143.62 and 10,560.50

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Solution

The fourth proportional to 18,944, 26,143.62 and 10,560.50 is: 14,573.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944 : 26,143.62 = 10,560.50 : x
  2. Step 2: Convert to fraction form
    18,944/26,143.62 = 10,560.50/x
  3. Step 3: Cross multiply
    18,944x = 26,143.62 × 10,560.50
  4. Step 4: Simplify right side
    18,944x = 276,089,699.01
  5. Step 5: Solve for x
    x = 276,089,699.01/18,944
  6. Step 6: Final answer
    x = 14,573.99

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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.