Home / 19,209.50-28,825.59-8,115.47

Finding the Fourth Proportional to 19,209.50, 28,825.59 and 8,115.47

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Solution

The fourth proportional to 19,209.50, 28,825.59 and 8,115.47 is: 12,178.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.50 : 28,825.59 = 8,115.47 : x
  2. Step 2: Convert to fraction form
    19,209.50/28,825.59 = 8,115.47/x
  3. Step 3: Cross multiply
    19,209.50x = 28,825.59 × 8,115.47
  4. Step 4: Simplify right side
    19,209.50x = 233,933,210.88
  5. Step 5: Solve for x
    x = 233,933,210.88/19,209.50
  6. Step 6: Final answer
    x = 12,178.00

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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.