Home / 18,746.70-25,876.35-11,198.58

Finding the Fourth Proportional to 18,746.70, 25,876.35 and 11,198.58

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Solution

The fourth proportional to 18,746.70, 25,876.35 and 11,198.58 is: 15,457.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.70 : 25,876.35 = 11,198.58 : x
  2. Step 2: Convert to fraction form
    18,746.70/25,876.35 = 11,198.58/x
  3. Step 3: Cross multiply
    18,746.70x = 25,876.35 × 11,198.58
  4. Step 4: Simplify right side
    18,746.70x = 289,778,375.58
  5. Step 5: Solve for x
    x = 289,778,375.58/18,746.70
  6. Step 6: Final answer
    x = 15,457.57

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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.