Home / 12,200.04-18,285.30-8,730

Finding the Fourth Proportional to 12,200.04, 18,285.30 and 8,730

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Solution

The fourth proportional to 12,200.04, 18,285.30 and 8,730 is: 13,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,200.04 : 18,285.30 = 8,730 : x
  2. Step 2: Convert to fraction form
    12,200.04/18,285.30 = 8,730/x
  3. Step 3: Cross multiply
    12,200.04x = 18,285.30 × 8,730
  4. Step 4: Simplify right side
    12,200.04x = 159,630,669
  5. Step 5: Solve for x
    x = 159,630,669/12,200.04
  6. Step 6: Final answer
    x = 13,084.44

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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.