Home / 8,519.19-12,778.74-3,325.08

Finding the Fourth Proportional to 8,519.19, 12,778.74 and 3,325.08

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Solution

The fourth proportional to 8,519.19, 12,778.74 and 3,325.08 is: 4,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.19 : 12,778.74 = 3,325.08 : x
  2. Step 2: Convert to fraction form
    8,519.19/12,778.74 = 3,325.08/x
  3. Step 3: Cross multiply
    8,519.19x = 12,778.74 × 3,325.08
  4. Step 4: Simplify right side
    8,519.19x = 42,490,332.80
  5. Step 5: Solve for x
    x = 42,490,332.80/8,519.19
  6. Step 6: Final answer
    x = 4,987.60

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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.