Home / 19,077.12-28,583.28-9,221.04

Finding the Fourth Proportional to 19,077.12, 28,583.28 and 9,221.04

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Solution

The fourth proportional to 19,077.12, 28,583.28 and 9,221.04 is: 13,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,077.12 : 28,583.28 = 9,221.04 : x
  2. Step 2: Convert to fraction form
    19,077.12/28,583.28 = 9,221.04/x
  3. Step 3: Cross multiply
    19,077.12x = 28,583.28 × 9,221.04
  4. Step 4: Simplify right side
    19,077.12x = 263,567,568.21
  5. Step 5: Solve for x
    x = 263,567,568.21/19,077.12
  6. Step 6: Final answer
    x = 13,815.90

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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.