Home / 13,003.36-19,506.48-5,211.28

Finding the Fourth Proportional to 13,003.36, 19,506.48 and 5,211.28

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Solution

The fourth proportional to 13,003.36, 19,506.48 and 5,211.28 is: 7,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,003.36 : 19,506.48 = 5,211.28 : x
  2. Step 2: Convert to fraction form
    13,003.36/19,506.48 = 5,211.28/x
  3. Step 3: Cross multiply
    13,003.36x = 19,506.48 × 5,211.28
  4. Step 4: Simplify right side
    13,003.36x = 101,653,729.09
  5. Step 5: Solve for x
    x = 101,653,729.09/13,003.36
  6. Step 6: Final answer
    x = 7,817.50

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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.