Home / 8,623.08-12,935.88-2,779.92

Finding the Fourth Proportional to 8,623.08, 12,935.88 and 2,779.92

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Solution

The fourth proportional to 8,623.08, 12,935.88 and 2,779.92 is: 4,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,623.08 : 12,935.88 = 2,779.92 : x
  2. Step 2: Convert to fraction form
    8,623.08/12,935.88 = 2,779.92/x
  3. Step 3: Cross multiply
    8,623.08x = 12,935.88 × 2,779.92
  4. Step 4: Simplify right side
    8,623.08x = 35,960,711.53
  5. Step 5: Solve for x
    x = 35,960,711.53/8,623.08
  6. Step 6: Final answer
    x = 4,170.29

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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.