Home / 19,105.19-28,652.25-8,011.58

Finding the Fourth Proportional to 19,105.19, 28,652.25 and 8,011.58

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Solution

The fourth proportional to 19,105.19, 28,652.25 and 8,011.58 is: 12,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,105.19 : 28,652.25 = 8,011.58 : x
  2. Step 2: Convert to fraction form
    19,105.19/28,652.25 = 8,011.58/x
  3. Step 3: Cross multiply
    19,105.19x = 28,652.25 × 8,011.58
  4. Step 4: Simplify right side
    19,105.19x = 229,549,793.06
  5. Step 5: Solve for x
    x = 229,549,793.06/19,105.19
  6. Step 6: Final answer
    x = 12,015.05

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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.