Home / 13,240.66-19,854.92-7,906.26

Finding the Fourth Proportional to 13,240.66, 19,854.92 and 7,906.26

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Solution

The fourth proportional to 13,240.66, 19,854.92 and 7,906.26 is: 11,855.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.66 : 19,854.92 = 7,906.26 : x
  2. Step 2: Convert to fraction form
    13,240.66/19,854.92 = 7,906.26/x
  3. Step 3: Cross multiply
    13,240.66x = 19,854.92 × 7,906.26
  4. Step 4: Simplify right side
    13,240.66x = 156,978,159.80
  5. Step 5: Solve for x
    x = 156,978,159.80/13,240.66
  6. Step 6: Final answer
    x = 11,855.77

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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.