Home / 26,431.37-39,646.50-6,440.97

Finding the Fourth Proportional to 26,431.37, 39,646.50 and 6,440.97

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Solution

The fourth proportional to 26,431.37, 39,646.50 and 6,440.97 is: 9,661.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,431.37 : 39,646.50 = 6,440.97 : x
  2. Step 2: Convert to fraction form
    26,431.37/39,646.50 = 6,440.97/x
  3. Step 3: Cross multiply
    26,431.37x = 39,646.50 × 6,440.97
  4. Step 4: Simplify right side
    26,431.37x = 255,361,917.11
  5. Step 5: Solve for x
    x = 255,361,917.11/26,431.37
  6. Step 6: Final answer
    x = 9,661.32

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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.