Home / 13,446.20-20,159.70-7,604.60

Finding the Fourth Proportional to 13,446.20, 20,159.70 and 7,604.60

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Solution

The fourth proportional to 13,446.20, 20,159.70 and 7,604.60 is: 11,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,446.20 : 20,159.70 = 7,604.60 : x
  2. Step 2: Convert to fraction form
    13,446.20/20,159.70 = 7,604.60/x
  3. Step 3: Cross multiply
    13,446.20x = 20,159.70 × 7,604.60
  4. Step 4: Simplify right side
    13,446.20x = 153,306,454.62
  5. Step 5: Solve for x
    x = 153,306,454.62/13,446.20
  6. Step 6: Final answer
    x = 11,401.47

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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.