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Finding the Fourth Proportional to 18,833.64, 26,000.10 and 13,269.48

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Solution

The fourth proportional to 18,833.64, 26,000.10 and 13,269.48 is: 18,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.64 : 26,000.10 = 13,269.48 : x
  2. Step 2: Convert to fraction form
    18,833.64/26,000.10 = 13,269.48/x
  3. Step 3: Cross multiply
    18,833.64x = 26,000.10 × 13,269.48
  4. Step 4: Simplify right side
    18,833.64x = 345,007,806.95
  5. Step 5: Solve for x
    x = 345,007,806.95/18,833.64
  6. Step 6: Final answer
    x = 18,318.70

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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.