Home / 18,139.38-25,025.19-10,477.59

Finding the Fourth Proportional to 18,139.38, 25,025.19 and 10,477.59

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Solution

The fourth proportional to 18,139.38, 25,025.19 and 10,477.59 is: 14,454.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.38 : 25,025.19 = 10,477.59 : x
  2. Step 2: Convert to fraction form
    18,139.38/25,025.19 = 10,477.59/x
  3. Step 3: Cross multiply
    18,139.38x = 25,025.19 × 10,477.59
  4. Step 4: Simplify right side
    18,139.38x = 262,203,680.49
  5. Step 5: Solve for x
    x = 262,203,680.49/18,139.38
  6. Step 6: Final answer
    x = 14,454.94

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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.