Home / 11,485.79-17,195.21-8,537.29

Finding the Fourth Proportional to 11,485.79, 17,195.21 and 8,537.29

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Solution

The fourth proportional to 11,485.79, 17,195.21 and 8,537.29 is: 12,781.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,485.79 : 17,195.21 = 8,537.29 : x
  2. Step 2: Convert to fraction form
    11,485.79/17,195.21 = 8,537.29/x
  3. Step 3: Cross multiply
    11,485.79x = 17,195.21 × 8,537.29
  4. Step 4: Simplify right side
    11,485.79x = 146,800,408.71
  5. Step 5: Solve for x
    x = 146,800,408.71/11,485.79
  6. Step 6: Final answer
    x = 12,781.05

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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.