Home / 13,043.67-18,001.89-8,571.12

Finding the Fourth Proportional to 13,043.67, 18,001.89 and 8,571.12

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Solution

The fourth proportional to 13,043.67, 18,001.89 and 8,571.12 is: 11,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.67 : 18,001.89 = 8,571.12 : x
  2. Step 2: Convert to fraction form
    13,043.67/18,001.89 = 8,571.12/x
  3. Step 3: Cross multiply
    13,043.67x = 18,001.89 × 8,571.12
  4. Step 4: Simplify right side
    13,043.67x = 154,296,359.42
  5. Step 5: Solve for x
    x = 154,296,359.42/13,043.67
  6. Step 6: Final answer
    x = 11,829.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.