Home / 13,430.38-20,146.65-4,196.38

Finding the Fourth Proportional to 13,430.38, 20,146.65 and 4,196.38

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Solution

The fourth proportional to 13,430.38, 20,146.65 and 4,196.38 is: 6,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.38 : 20,146.65 = 4,196.38 : x
  2. Step 2: Convert to fraction form
    13,430.38/20,146.65 = 4,196.38/x
  3. Step 3: Cross multiply
    13,430.38x = 20,146.65 × 4,196.38
  4. Step 4: Simplify right side
    13,430.38x = 84,542,898.39
  5. Step 5: Solve for x
    x = 84,542,898.39/13,430.38
  6. Step 6: Final answer
    x = 6,294.90

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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.