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Finding the Fourth Proportional to 19,245, 26,558.52 and 10,861.56

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Solution

The fourth proportional to 19,245, 26,558.52 and 10,861.56 is: 14,989.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,245 : 26,558.52 = 10,861.56 : x
  2. Step 2: Convert to fraction form
    19,245/26,558.52 = 10,861.56/x
  3. Step 3: Cross multiply
    19,245x = 26,558.52 × 10,861.56
  4. Step 4: Simplify right side
    19,245x = 288,466,958.49
  5. Step 5: Solve for x
    x = 288,466,958.49/19,245
  6. Step 6: Final answer
    x = 14,989.19

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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.