Home / 12,489.24-18,717.62-5,085.03

Finding the Fourth Proportional to 12,489.24, 18,717.62 and 5,085.03

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Solution

The fourth proportional to 12,489.24, 18,717.62 and 5,085.03 is: 7,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.24 : 18,717.62 = 5,085.03 : x
  2. Step 2: Convert to fraction form
    12,489.24/18,717.62 = 5,085.03/x
  3. Step 3: Cross multiply
    12,489.24x = 18,717.62 × 5,085.03
  4. Step 4: Simplify right side
    12,489.24x = 95,179,703.99
  5. Step 5: Solve for x
    x = 95,179,703.99/12,489.24
  6. Step 6: Final answer
    x = 7,620.93

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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.