Home / 8,719.24-13,081.06-3,787.68

Finding the Fourth Proportional to 8,719.24, 13,081.06 and 3,787.68

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Solution

The fourth proportional to 8,719.24, 13,081.06 and 3,787.68 is: 5,682.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.24 : 13,081.06 = 3,787.68 : x
  2. Step 2: Convert to fraction form
    8,719.24/13,081.06 = 3,787.68/x
  3. Step 3: Cross multiply
    8,719.24x = 13,081.06 × 3,787.68
  4. Step 4: Simplify right side
    8,719.24x = 49,546,869.34
  5. Step 5: Solve for x
    x = 49,546,869.34/8,719.24
  6. Step 6: Final answer
    x = 5,682.48

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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.