Home / 12,000.25-18,006.30-4,980.89

Finding the Fourth Proportional to 12,000.25, 18,006.30 and 4,980.89

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Solution

The fourth proportional to 12,000.25, 18,006.30 and 4,980.89 is: 7,473.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000.25 : 18,006.30 = 4,980.89 : x
  2. Step 2: Convert to fraction form
    12,000.25/18,006.30 = 4,980.89/x
  3. Step 3: Cross multiply
    12,000.25x = 18,006.30 × 4,980.89
  4. Step 4: Simplify right side
    12,000.25x = 89,687,444.62
  5. Step 5: Solve for x
    x = 89,687,444.62/12,000.25
  6. Step 6: Final answer
    x = 7,473.80

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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.