Home / 26,313.72-39,439.90-9,661.20

Finding the Fourth Proportional to 26,313.72, 39,439.90 and 9,661.20

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Solution

The fourth proportional to 26,313.72, 39,439.90 and 9,661.20 is: 14,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,313.72 : 39,439.90 = 9,661.20 : x
  2. Step 2: Convert to fraction form
    26,313.72/39,439.90 = 9,661.20/x
  3. Step 3: Cross multiply
    26,313.72x = 39,439.90 × 9,661.20
  4. Step 4: Simplify right side
    26,313.72x = 381,036,761.88
  5. Step 5: Solve for x
    x = 381,036,761.88/26,313.72
  6. Step 6: Final answer
    x = 14,480.54

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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.