Home / 13,672.73-18,859.61-8,628.05

Finding the Fourth Proportional to 13,672.73, 18,859.61 and 8,628.05

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Solution

The fourth proportional to 13,672.73, 18,859.61 and 8,628.05 is: 11,901.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.73 : 18,859.61 = 8,628.05 : x
  2. Step 2: Convert to fraction form
    13,672.73/18,859.61 = 8,628.05/x
  3. Step 3: Cross multiply
    13,672.73x = 18,859.61 × 8,628.05
  4. Step 4: Simplify right side
    13,672.73x = 162,721,520.62
  5. Step 5: Solve for x
    x = 162,721,520.62/13,672.73
  6. Step 6: Final answer
    x = 11,901.18

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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.