Home / 18,346.57-25,318.37-10,389.53

Finding the Fourth Proportional to 18,346.57, 25,318.37 and 10,389.53

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Solution

The fourth proportional to 18,346.57, 25,318.37 and 10,389.53 is: 14,337.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.57 : 25,318.37 = 10,389.53 : x
  2. Step 2: Convert to fraction form
    18,346.57/25,318.37 = 10,389.53/x
  3. Step 3: Cross multiply
    18,346.57x = 25,318.37 × 10,389.53
  4. Step 4: Simplify right side
    18,346.57x = 263,045,912.72
  5. Step 5: Solve for x
    x = 263,045,912.72/18,346.57
  6. Step 6: Final answer
    x = 14,337.61

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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.