Home / 12,320.65-18,483.87-4,000.03

Finding the Fourth Proportional to 12,320.65, 18,483.87 and 4,000.03

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Solution

The fourth proportional to 12,320.65, 18,483.87 and 4,000.03 is: 6,000.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.65 : 18,483.87 = 4,000.03 : x
  2. Step 2: Convert to fraction form
    12,320.65/18,483.87 = 4,000.03/x
  3. Step 3: Cross multiply
    12,320.65x = 18,483.87 × 4,000.03
  4. Step 4: Simplify right side
    12,320.65x = 73,935,942.10
  5. Step 5: Solve for x
    x = 73,935,942.10/12,320.65
  6. Step 6: Final answer
    x = 6,000.98

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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.