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Finding the Fourth Proportional to 18,880.38, 26,055 and 10,496.88

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Solution

The fourth proportional to 18,880.38, 26,055 and 10,496.88 is: 14,485.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,880.38 : 26,055 = 10,496.88 : x
  2. Step 2: Convert to fraction form
    18,880.38/26,055 = 10,496.88/x
  3. Step 3: Cross multiply
    18,880.38x = 26,055 × 10,496.88
  4. Step 4: Simplify right side
    18,880.38x = 273,496,208.40
  5. Step 5: Solve for x
    x = 273,496,208.40/18,880.38
  6. Step 6: Final answer
    x = 14,485.74

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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.