Home / 19,212.56-28,810.68-7,523.92

Finding the Fourth Proportional to 19,212.56, 28,810.68 and 7,523.92

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Solution

The fourth proportional to 19,212.56, 28,810.68 and 7,523.92 is: 11,282.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.56 : 28,810.68 = 7,523.92 : x
  2. Step 2: Convert to fraction form
    19,212.56/28,810.68 = 7,523.92/x
  3. Step 3: Cross multiply
    19,212.56x = 28,810.68 × 7,523.92
  4. Step 4: Simplify right side
    19,212.56x = 216,769,251.47
  5. Step 5: Solve for x
    x = 216,769,251.47/19,212.56
  6. Step 6: Final answer
    x = 11,282.68

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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.