Home / 13,225.36-19,838.16-5,431.12

Finding the Fourth Proportional to 13,225.36, 19,838.16 and 5,431.12

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Solution

The fourth proportional to 13,225.36, 19,838.16 and 5,431.12 is: 8,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.36 : 19,838.16 = 5,431.12 : x
  2. Step 2: Convert to fraction form
    13,225.36/19,838.16 = 5,431.12/x
  3. Step 3: Cross multiply
    13,225.36x = 19,838.16 × 5,431.12
  4. Step 4: Simplify right side
    13,225.36x = 107,743,427.54
  5. Step 5: Solve for x
    x = 107,743,427.54/13,225.36
  6. Step 6: Final answer
    x = 8,146.73

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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.