Home / 15,098.40-20,820.96-13,906.44

Finding the Fourth Proportional to 15,098.40, 20,820.96 and 13,906.44

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Solution

The fourth proportional to 15,098.40, 20,820.96 and 13,906.44 is: 19,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,098.40 : 20,820.96 = 13,906.44 : x
  2. Step 2: Convert to fraction form
    15,098.40/20,820.96 = 13,906.44/x
  3. Step 3: Cross multiply
    15,098.40x = 20,820.96 × 13,906.44
  4. Step 4: Simplify right side
    15,098.40x = 289,545,430.98
  5. Step 5: Solve for x
    x = 289,545,430.98/15,098.40
  6. Step 6: Final answer
    x = 19,177.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.