Home / 11,727.89-17,579.53-8,603.21

Finding the Fourth Proportional to 11,727.89, 17,579.53 and 8,603.21

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Solution

The fourth proportional to 11,727.89, 17,579.53 and 8,603.21 is: 12,895.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.89 : 17,579.53 = 8,603.21 : x
  2. Step 2: Convert to fraction form
    11,727.89/17,579.53 = 8,603.21/x
  3. Step 3: Cross multiply
    11,727.89x = 17,579.53 × 8,603.21
  4. Step 4: Simplify right side
    11,727.89x = 151,240,442.99
  5. Step 5: Solve for x
    x = 151,240,442.99/11,727.89
  6. Step 6: Final answer
    x = 12,895.79

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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.