Home / 13,015.56-19,508.76-5,215.26

Finding the Fourth Proportional to 13,015.56, 19,508.76 and 5,215.26

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Solution

The fourth proportional to 13,015.56, 19,508.76 and 5,215.26 is: 7,817.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.56 : 19,508.76 = 5,215.26 : x
  2. Step 2: Convert to fraction form
    13,015.56/19,508.76 = 5,215.26/x
  3. Step 3: Cross multiply
    13,015.56x = 19,508.76 × 5,215.26
  4. Step 4: Simplify right side
    13,015.56x = 101,743,255.68
  5. Step 5: Solve for x
    x = 101,743,255.68/13,015.56
  6. Step 6: Final answer
    x = 7,817.05

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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.