Home / 8,718.30-13,073.40-3,785.40

Finding the Fourth Proportional to 8,718.30, 13,073.40 and 3,785.40

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Solution

The fourth proportional to 8,718.30, 13,073.40 and 3,785.40 is: 5,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.30 : 13,073.40 = 3,785.40 : x
  2. Step 2: Convert to fraction form
    8,718.30/13,073.40 = 3,785.40/x
  3. Step 3: Cross multiply
    8,718.30x = 13,073.40 × 3,785.40
  4. Step 4: Simplify right side
    8,718.30x = 49,488,048.36
  5. Step 5: Solve for x
    x = 49,488,048.36/8,718.30
  6. Step 6: Final answer
    x = 5,676.34

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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.