Home / 13,705.07-18,910.97-8,037.68

Finding the Fourth Proportional to 13,705.07, 18,910.97 and 8,037.68

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Solution

The fourth proportional to 13,705.07, 18,910.97 and 8,037.68 is: 11,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,705.07 : 18,910.97 = 8,037.68 : x
  2. Step 2: Convert to fraction form
    13,705.07/18,910.97 = 8,037.68/x
  3. Step 3: Cross multiply
    13,705.07x = 18,910.97 × 8,037.68
  4. Step 4: Simplify right side
    13,705.07x = 152,000,190.61
  5. Step 5: Solve for x
    x = 152,000,190.61/13,705.07
  6. Step 6: Final answer
    x = 11,090.80

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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.