Home / 13,606.92-18,780.89-8,306.18

Finding the Fourth Proportional to 13,606.92, 18,780.89 and 8,306.18

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Solution

The fourth proportional to 13,606.92, 18,780.89 and 8,306.18 is: 11,464.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.92 : 18,780.89 = 8,306.18 : x
  2. Step 2: Convert to fraction form
    13,606.92/18,780.89 = 8,306.18/x
  3. Step 3: Cross multiply
    13,606.92x = 18,780.89 × 8,306.18
  4. Step 4: Simplify right side
    13,606.92x = 155,997,317.46
  5. Step 5: Solve for x
    x = 155,997,317.46/13,606.92
  6. Step 6: Final answer
    x = 11,464.56

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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.