Home / 13,435.03-20,154.72-4,072.85

Finding the Fourth Proportional to 13,435.03, 20,154.72 and 4,072.85

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Solution

The fourth proportional to 13,435.03, 20,154.72 and 4,072.85 is: 6,109.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,435.03 : 20,154.72 = 4,072.85 : x
  2. Step 2: Convert to fraction form
    13,435.03/20,154.72 = 4,072.85/x
  3. Step 3: Cross multiply
    13,435.03x = 20,154.72 × 4,072.85
  4. Step 4: Simplify right side
    13,435.03x = 82,087,151.35
  5. Step 5: Solve for x
    x = 82,087,151.35/13,435.03
  6. Step 6: Final answer
    x = 6,109.93

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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.