Home / 18,190.98-25,090.12-12,527.53

Finding the Fourth Proportional to 18,190.98, 25,090.12 and 12,527.53

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Solution

The fourth proportional to 18,190.98, 25,090.12 and 12,527.53 is: 17,278.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.98 : 25,090.12 = 12,527.53 : x
  2. Step 2: Convert to fraction form
    18,190.98/25,090.12 = 12,527.53/x
  3. Step 3: Cross multiply
    18,190.98x = 25,090.12 × 12,527.53
  4. Step 4: Simplify right side
    18,190.98x = 314,317,183.94
  5. Step 5: Solve for x
    x = 314,317,183.94/18,190.98
  6. Step 6: Final answer
    x = 17,278.74

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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.