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Finding the Fourth Proportional to 18,673.84, 28,010.40 and 4,633.90

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Solution

The fourth proportional to 18,673.84, 28,010.40 and 4,633.90 is: 6,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,673.84 : 28,010.40 = 4,633.90 : x
  2. Step 2: Convert to fraction form
    18,673.84/28,010.40 = 4,633.90/x
  3. Step 3: Cross multiply
    18,673.84x = 28,010.40 × 4,633.90
  4. Step 4: Simplify right side
    18,673.84x = 129,797,392.56
  5. Step 5: Solve for x
    x = 129,797,392.56/18,673.84
  6. Step 6: Final answer
    x = 6,950.76

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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.