Home / 13,266.29-19,899.43-3,906.31

Finding the Fourth Proportional to 13,266.29, 19,899.43 and 3,906.31

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Solution

The fourth proportional to 13,266.29, 19,899.43 and 3,906.31 is: 5,859.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.29 : 19,899.43 = 3,906.31 : x
  2. Step 2: Convert to fraction form
    13,266.29/19,899.43 = 3,906.31/x
  3. Step 3: Cross multiply
    13,266.29x = 19,899.43 × 3,906.31
  4. Step 4: Simplify right side
    13,266.29x = 77,733,258.01
  5. Step 5: Solve for x
    x = 77,733,258.01/13,266.29
  6. Step 6: Final answer
    x = 5,859.46

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Double scale
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Similar ratio
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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.