Home / 12,007.31-18,011.07-4,216.13

Finding the Fourth Proportional to 12,007.31, 18,011.07 and 4,216.13

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Solution

The fourth proportional to 12,007.31, 18,011.07 and 4,216.13 is: 6,324.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.31 : 18,011.07 = 4,216.13 : x
  2. Step 2: Convert to fraction form
    12,007.31/18,011.07 = 4,216.13/x
  3. Step 3: Cross multiply
    12,007.31x = 18,011.07 × 4,216.13
  4. Step 4: Simplify right side
    12,007.31x = 75,936,922.50
  5. Step 5: Solve for x
    x = 75,936,922.50/12,007.31
  6. Step 6: Final answer
    x = 6,324.22

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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.