Home / 18,845.85-26,005.35-10,890.64

Finding the Fourth Proportional to 18,845.85, 26,005.35 and 10,890.64

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Solution

The fourth proportional to 18,845.85, 26,005.35 and 10,890.64 is: 15,027.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.85 : 26,005.35 = 10,890.64 : x
  2. Step 2: Convert to fraction form
    18,845.85/26,005.35 = 10,890.64/x
  3. Step 3: Cross multiply
    18,845.85x = 26,005.35 × 10,890.64
  4. Step 4: Simplify right side
    18,845.85x = 283,214,904.92
  5. Step 5: Solve for x
    x = 283,214,904.92/18,845.85
  6. Step 6: Final answer
    x = 15,027.97

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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.