Home / 13,049.88-18,008.70-7,081.56

Finding the Fourth Proportional to 13,049.88, 18,008.70 and 7,081.56

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Solution

The fourth proportional to 13,049.88, 18,008.70 and 7,081.56 is: 9,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.88 : 18,008.70 = 7,081.56 : x
  2. Step 2: Convert to fraction form
    13,049.88/18,008.70 = 7,081.56/x
  3. Step 3: Cross multiply
    13,049.88x = 18,008.70 × 7,081.56
  4. Step 4: Simplify right side
    13,049.88x = 127,529,689.57
  5. Step 5: Solve for x
    x = 127,529,689.57/13,049.88
  6. Step 6: Final answer
    x = 9,772.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.