Home / 11,260.74-16,865.73-5,421.72

Finding the Fourth Proportional to 11,260.74, 16,865.73 and 5,421.72

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Solution

The fourth proportional to 11,260.74, 16,865.73 and 5,421.72 is: 8,120.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,260.74 : 16,865.73 = 5,421.72 : x
  2. Step 2: Convert to fraction form
    11,260.74/16,865.73 = 5,421.72/x
  3. Step 3: Cross multiply
    11,260.74x = 16,865.73 × 5,421.72
  4. Step 4: Simplify right side
    11,260.74x = 91,441,265.66
  5. Step 5: Solve for x
    x = 91,441,265.66/11,260.74
  6. Step 6: Final answer
    x = 8,120.36

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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.