Home / 8,519.12-11,756.40-4,981.68

Finding the Fourth Proportional to 8,519.12, 11,756.40 and 4,981.68

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Solution

The fourth proportional to 8,519.12, 11,756.40 and 4,981.68 is: 6,874.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.12 : 11,756.40 = 4,981.68 : x
  2. Step 2: Convert to fraction form
    8,519.12/11,756.40 = 4,981.68/x
  3. Step 3: Cross multiply
    8,519.12x = 11,756.40 × 4,981.68
  4. Step 4: Simplify right side
    8,519.12x = 58,566,622.75
  5. Step 5: Solve for x
    x = 58,566,622.75/8,519.12
  6. Step 6: Final answer
    x = 6,874.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.