Home / 13,351.20-18,429.84-11,951.52

Finding the Fourth Proportional to 13,351.20, 18,429.84 and 11,951.52

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Solution

The fourth proportional to 13,351.20, 18,429.84 and 11,951.52 is: 16,497.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.20 : 18,429.84 = 11,951.52 : x
  2. Step 2: Convert to fraction form
    13,351.20/18,429.84 = 11,951.52/x
  3. Step 3: Cross multiply
    13,351.20x = 18,429.84 × 11,951.52
  4. Step 4: Simplify right side
    13,351.20x = 220,264,601.36
  5. Step 5: Solve for x
    x = 220,264,601.36/13,351.20
  6. Step 6: Final answer
    x = 16,497.74

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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.