Home / 8,515.35-12,767.76-3,582.45

Finding the Fourth Proportional to 8,515.35, 12,767.76 and 3,582.45

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Solution

The fourth proportional to 8,515.35, 12,767.76 and 3,582.45 is: 5,371.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.35 : 12,767.76 = 3,582.45 : x
  2. Step 2: Convert to fraction form
    8,515.35/12,767.76 = 3,582.45/x
  3. Step 3: Cross multiply
    8,515.35x = 12,767.76 × 3,582.45
  4. Step 4: Simplify right side
    8,515.35x = 45,739,843.90
  5. Step 5: Solve for x
    x = 45,739,843.90/8,515.35
  6. Step 6: Final answer
    x = 5,371.46

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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.