Home / 19,217.36-28,808.84-7,538.72

Finding the Fourth Proportional to 19,217.36, 28,808.84 and 7,538.72

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Solution

The fourth proportional to 19,217.36, 28,808.84 and 7,538.72 is: 11,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,217.36 : 28,808.84 = 7,538.72 : x
  2. Step 2: Convert to fraction form
    19,217.36/28,808.84 = 7,538.72/x
  3. Step 3: Cross multiply
    19,217.36x = 28,808.84 × 7,538.72
  4. Step 4: Simplify right side
    19,217.36x = 217,181,778.28
  5. Step 5: Solve for x
    x = 217,181,778.28/19,217.36
  6. Step 6: Final answer
    x = 11,301.33

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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.