Home / 13,012.13-19,518.73-3,778.13

Finding the Fourth Proportional to 13,012.13, 19,518.73 and 3,778.13

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Solution

The fourth proportional to 13,012.13, 19,518.73 and 3,778.13 is: 5,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012.13 : 19,518.73 = 3,778.13 : x
  2. Step 2: Convert to fraction form
    13,012.13/19,518.73 = 3,778.13/x
  3. Step 3: Cross multiply
    13,012.13x = 19,518.73 × 3,778.13
  4. Step 4: Simplify right side
    13,012.13x = 73,744,192.34
  5. Step 5: Solve for x
    x = 73,744,192.34/13,012.13
  6. Step 6: Final answer
    x = 5,667.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.