Home / 8,785.13-13,174.52-3,521.34

Finding the Fourth Proportional to 8,785.13, 13,174.52 and 3,521.34

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Solution

The fourth proportional to 8,785.13, 13,174.52 and 3,521.34 is: 5,280.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.13 : 13,174.52 = 3,521.34 : x
  2. Step 2: Convert to fraction form
    8,785.13/13,174.52 = 3,521.34/x
  3. Step 3: Cross multiply
    8,785.13x = 13,174.52 × 3,521.34
  4. Step 4: Simplify right side
    8,785.13x = 46,391,946.65
  5. Step 5: Solve for x
    x = 46,391,946.65/8,785.13
  6. Step 6: Final answer
    x = 5,280.74

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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.