Home / 19,198.15-28,732.20-11,807.29

Finding the Fourth Proportional to 19,198.15, 28,732.20 and 11,807.29

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Solution

The fourth proportional to 19,198.15, 28,732.20 and 11,807.29 is: 17,670.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,198.15 : 28,732.20 = 11,807.29 : x
  2. Step 2: Convert to fraction form
    19,198.15/28,732.20 = 11,807.29/x
  3. Step 3: Cross multiply
    19,198.15x = 28,732.20 × 11,807.29
  4. Step 4: Simplify right side
    19,198.15x = 339,249,417.74
  5. Step 5: Solve for x
    x = 339,249,417.74/19,198.15
  6. Step 6: Final answer
    x = 17,670.94

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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.