Home / 13,840.03-19,101.68-8,174.39

Finding the Fourth Proportional to 13,840.03, 19,101.68 and 8,174.39

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Solution

The fourth proportional to 13,840.03, 19,101.68 and 8,174.39 is: 11,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.03 : 19,101.68 = 8,174.39 : x
  2. Step 2: Convert to fraction form
    13,840.03/19,101.68 = 8,174.39/x
  3. Step 3: Cross multiply
    13,840.03x = 19,101.68 × 8,174.39
  4. Step 4: Simplify right side
    13,840.03x = 156,144,581.98
  5. Step 5: Solve for x
    x = 156,144,581.98/13,840.03
  6. Step 6: Final answer
    x = 11,282.10

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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.