Home / 13,622.85-20,442.04-5,301.79

Finding the Fourth Proportional to 13,622.85, 20,442.04 and 5,301.79

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Solution

The fourth proportional to 13,622.85, 20,442.04 and 5,301.79 is: 7,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.85 : 20,442.04 = 5,301.79 : x
  2. Step 2: Convert to fraction form
    13,622.85/20,442.04 = 5,301.79/x
  3. Step 3: Cross multiply
    13,622.85x = 20,442.04 × 5,301.79
  4. Step 4: Simplify right side
    13,622.85x = 108,379,338.89
  5. Step 5: Solve for x
    x = 108,379,338.89/13,622.85
  6. Step 6: Final answer
    x = 7,955.70

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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.