Home / 8,719.96-13,077.98-2,479.84

Finding the Fourth Proportional to 8,719.96, 13,077.98 and 2,479.84

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Solution

The fourth proportional to 8,719.96, 13,077.98 and 2,479.84 is: 3,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.96 : 13,077.98 = 2,479.84 : x
  2. Step 2: Convert to fraction form
    8,719.96/13,077.98 = 2,479.84/x
  3. Step 3: Cross multiply
    8,719.96x = 13,077.98 × 2,479.84
  4. Step 4: Simplify right side
    8,719.96x = 32,431,297.92
  5. Step 5: Solve for x
    x = 32,431,297.92/8,719.96
  6. Step 6: Final answer
    x = 3,719.20

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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.