Home / 19,652.18-29,481.85-9,120.75

Finding the Fourth Proportional to 19,652.18, 29,481.85 and 9,120.75

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Solution

The fourth proportional to 19,652.18, 29,481.85 and 9,120.75 is: 13,682.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,652.18 : 29,481.85 = 9,120.75 : x
  2. Step 2: Convert to fraction form
    19,652.18/29,481.85 = 9,120.75/x
  3. Step 3: Cross multiply
    19,652.18x = 29,481.85 × 9,120.75
  4. Step 4: Simplify right side
    19,652.18x = 268,896,458.78
  5. Step 5: Solve for x
    x = 268,896,458.78/19,652.18
  6. Step 6: Final answer
    x = 13,682.78

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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.