Home / 16,768.38-25,129.21-12,603.54

Finding the Fourth Proportional to 16,768.38, 25,129.21 and 12,603.54

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Solution

The fourth proportional to 16,768.38, 25,129.21 and 12,603.54 is: 18,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,768.38 : 25,129.21 = 12,603.54 : x
  2. Step 2: Convert to fraction form
    16,768.38/25,129.21 = 12,603.54/x
  3. Step 3: Cross multiply
    16,768.38x = 25,129.21 × 12,603.54
  4. Step 4: Simplify right side
    16,768.38x = 316,716,948.52
  5. Step 5: Solve for x
    x = 316,716,948.52/16,768.38
  6. Step 6: Final answer
    x = 18,887.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.