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Finding the Fourth Proportional to 15,879.40, 23,844.70 and 11,527.40

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Solution

The fourth proportional to 15,879.40, 23,844.70 and 11,527.40 is: 17,309.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,879.40 : 23,844.70 = 11,527.40 : x
  2. Step 2: Convert to fraction form
    15,879.40/23,844.70 = 11,527.40/x
  3. Step 3: Cross multiply
    15,879.40x = 23,844.70 × 11,527.40
  4. Step 4: Simplify right side
    15,879.40x = 274,867,394.78
  5. Step 5: Solve for x
    x = 274,867,394.78/15,879.40
  6. Step 6: Final answer
    x = 17,309.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.