Home / 19,209.10-28,784.49-9,345.73

Finding the Fourth Proportional to 19,209.10, 28,784.49 and 9,345.73

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Solution

The fourth proportional to 19,209.10, 28,784.49 and 9,345.73 is: 14,004.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.10 : 28,784.49 = 9,345.73 : x
  2. Step 2: Convert to fraction form
    19,209.10/28,784.49 = 9,345.73/x
  3. Step 3: Cross multiply
    19,209.10x = 28,784.49 × 9,345.73
  4. Step 4: Simplify right side
    19,209.10x = 269,012,071.73
  5. Step 5: Solve for x
    x = 269,012,071.73/19,209.10
  6. Step 6: Final answer
    x = 14,004.41

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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.