Home / 8,632.19-12,948.35-2,788.80

Finding the Fourth Proportional to 8,632.19, 12,948.35 and 2,788.80

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Solution

The fourth proportional to 8,632.19, 12,948.35 and 2,788.80 is: 4,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,632.19 : 12,948.35 = 2,788.80 : x
  2. Step 2: Convert to fraction form
    8,632.19/12,948.35 = 2,788.80/x
  3. Step 3: Cross multiply
    8,632.19x = 12,948.35 × 2,788.80
  4. Step 4: Simplify right side
    8,632.19x = 36,110,344.54
  5. Step 5: Solve for x
    x = 36,110,344.54/8,632.19
  6. Step 6: Final answer
    x = 4,183.22

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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.