Home / 18,621.38-25,697.66-10,123.54

Finding the Fourth Proportional to 18,621.38, 25,697.66 and 10,123.54

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Solution

The fourth proportional to 18,621.38, 25,697.66 and 10,123.54 is: 13,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.38 : 25,697.66 = 10,123.54 : x
  2. Step 2: Convert to fraction form
    18,621.38/25,697.66 = 10,123.54/x
  3. Step 3: Cross multiply
    18,621.38x = 25,697.66 × 10,123.54
  4. Step 4: Simplify right side
    18,621.38x = 260,151,174.05
  5. Step 5: Solve for x
    x = 260,151,174.05/18,621.38
  6. Step 6: Final answer
    x = 13,970.56

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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.