Home / 19,190.96-28,779.16-7,502.72

Finding the Fourth Proportional to 19,190.96, 28,779.16 and 7,502.72

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Solution

The fourth proportional to 19,190.96, 28,779.16 and 7,502.72 is: 11,251.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.96 : 28,779.16 = 7,502.72 : x
  2. Step 2: Convert to fraction form
    19,190.96/28,779.16 = 7,502.72/x
  3. Step 3: Cross multiply
    19,190.96x = 28,779.16 × 7,502.72
  4. Step 4: Simplify right side
    19,190.96x = 215,921,979.32
  5. Step 5: Solve for x
    x = 215,921,979.32/19,190.96
  6. Step 6: Final answer
    x = 11,251.23

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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.