Home / 13,834.19-19,090.62-8,170.77

Finding the Fourth Proportional to 13,834.19, 19,090.62 and 8,170.77

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Solution

The fourth proportional to 13,834.19, 19,090.62 and 8,170.77 is: 11,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,834.19 : 19,090.62 = 8,170.77 : x
  2. Step 2: Convert to fraction form
    13,834.19/19,090.62 = 8,170.77/x
  3. Step 3: Cross multiply
    13,834.19x = 19,090.62 × 8,170.77
  4. Step 4: Simplify right side
    13,834.19x = 155,985,112.90
  5. Step 5: Solve for x
    x = 155,985,112.90/13,834.19
  6. Step 6: Final answer
    x = 11,275.33

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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.