Home / 19,173.12-28,752.39-9,174.89

Finding the Fourth Proportional to 19,173.12, 28,752.39 and 9,174.89

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Solution

The fourth proportional to 19,173.12, 28,752.39 and 9,174.89 is: 13,758.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.12 : 28,752.39 = 9,174.89 : x
  2. Step 2: Convert to fraction form
    19,173.12/28,752.39 = 9,174.89/x
  3. Step 3: Cross multiply
    19,173.12x = 28,752.39 × 9,174.89
  4. Step 4: Simplify right side
    19,173.12x = 263,799,871.73
  5. Step 5: Solve for x
    x = 263,799,871.73/19,173.12
  6. Step 6: Final answer
    x = 13,758.84

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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.