Home / 19,201.50-28,813.59-8,107.47

Finding the Fourth Proportional to 19,201.50, 28,813.59 and 8,107.47

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Solution

The fourth proportional to 19,201.50, 28,813.59 and 8,107.47 is: 12,165.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.50 : 28,813.59 = 8,107.47 : x
  2. Step 2: Convert to fraction form
    19,201.50/28,813.59 = 8,107.47/x
  3. Step 3: Cross multiply
    19,201.50x = 28,813.59 × 8,107.47
  4. Step 4: Simplify right side
    19,201.50x = 233,605,316.52
  5. Step 5: Solve for x
    x = 233,605,316.52/19,201.50
  6. Step 6: Final answer
    x = 12,165.99

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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.