Home / 18,845.76-28,257.57-7,159.80

Finding the Fourth Proportional to 18,845.76, 28,257.57 and 7,159.80

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Solution

The fourth proportional to 18,845.76, 28,257.57 and 7,159.80 is: 10,735.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,845.76 : 28,257.57 = 7,159.80 : x
  2. Step 2: Convert to fraction form
    18,845.76/28,257.57 = 7,159.80/x
  3. Step 3: Cross multiply
    18,845.76x = 28,257.57 × 7,159.80
  4. Step 4: Simplify right side
    18,845.76x = 202,318,549.69
  5. Step 5: Solve for x
    x = 202,318,549.69/18,845.76
  6. Step 6: Final answer
    x = 10,735.49

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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.