Home / 19,490.88-29,245.92-9,103.36

Finding the Fourth Proportional to 19,490.88, 29,245.92 and 9,103.36

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Solution

The fourth proportional to 19,490.88, 29,245.92 and 9,103.36 is: 13,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.88 : 29,245.92 = 9,103.36 : x
  2. Step 2: Convert to fraction form
    19,490.88/29,245.92 = 9,103.36/x
  3. Step 3: Cross multiply
    19,490.88x = 29,245.92 × 9,103.36
  4. Step 4: Simplify right side
    19,490.88x = 266,236,138.29
  5. Step 5: Solve for x
    x = 266,236,138.29/19,490.88
  6. Step 6: Final answer
    x = 13,659.52

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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.