Home / 13,274.55-19,905.35-7,729.83

Finding the Fourth Proportional to 13,274.55, 19,905.35 and 7,729.83

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Solution

The fourth proportional to 13,274.55, 19,905.35 and 7,729.83 is: 11,590.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.55 : 19,905.35 = 7,729.83 : x
  2. Step 2: Convert to fraction form
    13,274.55/19,905.35 = 7,729.83/x
  3. Step 3: Cross multiply
    13,274.55x = 19,905.35 × 7,729.83
  4. Step 4: Simplify right side
    13,274.55x = 153,864,932.94
  5. Step 5: Solve for x
    x = 153,864,932.94/13,274.55
  6. Step 6: Final answer
    x = 11,590.97

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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.