Home / 12,006.79-18,022.86-6,746.29

Finding the Fourth Proportional to 12,006.79, 18,022.86 and 6,746.29

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Solution

The fourth proportional to 12,006.79, 18,022.86 and 6,746.29 is: 10,126.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.79 : 18,022.86 = 6,746.29 : x
  2. Step 2: Convert to fraction form
    12,006.79/18,022.86 = 6,746.29/x
  3. Step 3: Cross multiply
    12,006.79x = 18,022.86 × 6,746.29
  4. Step 4: Simplify right side
    12,006.79x = 121,587,450.07
  5. Step 5: Solve for x
    x = 121,587,450.07/12,006.79
  6. Step 6: Final answer
    x = 10,126.56

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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.