Home / 13,646.10-20,469.15-3,785.38

Finding the Fourth Proportional to 13,646.10, 20,469.15 and 3,785.38

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Solution

The fourth proportional to 13,646.10, 20,469.15 and 3,785.38 is: 5,678.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,646.10 : 20,469.15 = 3,785.38 : x
  2. Step 2: Convert to fraction form
    13,646.10/20,469.15 = 3,785.38/x
  3. Step 3: Cross multiply
    13,646.10x = 20,469.15 × 3,785.38
  4. Step 4: Simplify right side
    13,646.10x = 77,483,459.85
  5. Step 5: Solve for x
    x = 77,483,459.85/13,646.10
  6. Step 6: Final answer
    x = 5,678.07

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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.