Home / 13,755.34-18,982.38-7,467.76

Finding the Fourth Proportional to 13,755.34, 18,982.38 and 7,467.76

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Solution

The fourth proportional to 13,755.34, 18,982.38 and 7,467.76 is: 10,305.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,755.34 : 18,982.38 = 7,467.76 : x
  2. Step 2: Convert to fraction form
    13,755.34/18,982.38 = 7,467.76/x
  3. Step 3: Cross multiply
    13,755.34x = 18,982.38 × 7,467.76
  4. Step 4: Simplify right side
    13,755.34x = 141,755,858.07
  5. Step 5: Solve for x
    x = 141,755,858.07/13,755.34
  6. Step 6: Final answer
    x = 10,305.51

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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.