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Finding the Fourth Proportional to 12,184.15, 18,281.89 and 6,630.89

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Solution

The fourth proportional to 12,184.15, 18,281.89 and 6,630.89 is: 9,949.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.15 : 18,281.89 = 6,630.89 : x
  2. Step 2: Convert to fraction form
    12,184.15/18,281.89 = 6,630.89/x
  3. Step 3: Cross multiply
    12,184.15x = 18,281.89 × 6,630.89
  4. Step 4: Simplify right side
    12,184.15x = 121,225,077.02
  5. Step 5: Solve for x
    x = 121,225,077.02/12,184.15
  6. Step 6: Final answer
    x = 9,949.41

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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.