Home / 19,011.12-28,519.14-7,327.68

Finding the Fourth Proportional to 19,011.12, 28,519.14 and 7,327.68

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Solution

The fourth proportional to 19,011.12, 28,519.14 and 7,327.68 is: 10,992.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.12 : 28,519.14 = 7,327.68 : x
  2. Step 2: Convert to fraction form
    19,011.12/28,519.14 = 7,327.68/x
  3. Step 3: Cross multiply
    19,011.12x = 28,519.14 × 7,327.68
  4. Step 4: Simplify right side
    19,011.12x = 208,979,131.80
  5. Step 5: Solve for x
    x = 208,979,131.80/19,011.12
  6. Step 6: Final answer
    x = 10,992.47

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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.