Home / 13,741.39-18,965.81-8,077.97

Finding the Fourth Proportional to 13,741.39, 18,965.81 and 8,077.97

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Solution

The fourth proportional to 13,741.39, 18,965.81 and 8,077.97 is: 11,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.39 : 18,965.81 = 8,077.97 : x
  2. Step 2: Convert to fraction form
    13,741.39/18,965.81 = 8,077.97/x
  3. Step 3: Cross multiply
    13,741.39x = 18,965.81 × 8,077.97
  4. Step 4: Simplify right side
    13,741.39x = 153,205,244.21
  5. Step 5: Solve for x
    x = 153,205,244.21/13,741.39
  6. Step 6: Final answer
    x = 11,149.18

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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.