Home / 12,420.11-18,632.01-4,101

Finding the Fourth Proportional to 12,420.11, 18,632.01 and 4,101

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Solution

The fourth proportional to 12,420.11, 18,632.01 and 4,101 is: 6,152.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,420.11 : 18,632.01 = 4,101 : x
  2. Step 2: Convert to fraction form
    12,420.11/18,632.01 = 4,101/x
  3. Step 3: Cross multiply
    12,420.11x = 18,632.01 × 4,101
  4. Step 4: Simplify right side
    12,420.11x = 76,409,873.01
  5. Step 5: Solve for x
    x = 76,409,873.01/12,420.11
  6. Step 6: Final answer
    x = 6,152.11

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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.