Home / 12,487.60-17,236.20-7,183.04

Finding the Fourth Proportional to 12,487.60, 17,236.20 and 7,183.04

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Solution

The fourth proportional to 12,487.60, 17,236.20 and 7,183.04 is: 9,914.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.60 : 17,236.20 = 7,183.04 : x
  2. Step 2: Convert to fraction form
    12,487.60/17,236.20 = 7,183.04/x
  3. Step 3: Cross multiply
    12,487.60x = 17,236.20 × 7,183.04
  4. Step 4: Simplify right side
    12,487.60x = 123,808,314.05
  5. Step 5: Solve for x
    x = 123,808,314.05/12,487.60
  6. Step 6: Final answer
    x = 9,914.50

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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.