Home / 18,928.70-28,366.27-10,498.94

Finding the Fourth Proportional to 18,928.70, 28,366.27 and 10,498.94

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Solution

The fourth proportional to 18,928.70, 28,366.27 and 10,498.94 is: 15,733.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,928.70 : 28,366.27 = 10,498.94 : x
  2. Step 2: Convert to fraction form
    18,928.70/28,366.27 = 10,498.94/x
  3. Step 3: Cross multiply
    18,928.70x = 28,366.27 × 10,498.94
  4. Step 4: Simplify right side
    18,928.70x = 297,815,714.26
  5. Step 5: Solve for x
    x = 297,815,714.26/18,928.70
  6. Step 6: Final answer
    x = 15,733.55

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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.