Home / 8,515.10-12,767.38-3,582.20

Finding the Fourth Proportional to 8,515.10, 12,767.38 and 3,582.20

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Solution

The fourth proportional to 8,515.10, 12,767.38 and 3,582.20 is: 5,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.10 : 12,767.38 = 3,582.20 : x
  2. Step 2: Convert to fraction form
    8,515.10/12,767.38 = 3,582.20/x
  3. Step 3: Cross multiply
    8,515.10x = 12,767.38 × 3,582.20
  4. Step 4: Simplify right side
    8,515.10x = 45,735,308.64
  5. Step 5: Solve for x
    x = 45,735,308.64/8,515.10
  6. Step 6: Final answer
    x = 5,371.08

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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.