Home / 13,385.71-20,109.35-9,446.04

Finding the Fourth Proportional to 13,385.71, 20,109.35 and 9,446.04

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Solution

The fourth proportional to 13,385.71, 20,109.35 and 9,446.04 is: 14,190.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.71 : 20,109.35 = 9,446.04 : x
  2. Step 2: Convert to fraction form
    13,385.71/20,109.35 = 9,446.04/x
  3. Step 3: Cross multiply
    13,385.71x = 20,109.35 × 9,446.04
  4. Step 4: Simplify right side
    13,385.71x = 189,953,724.47
  5. Step 5: Solve for x
    x = 189,953,724.47/13,385.71
  6. Step 6: Final answer
    x = 14,190.78

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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.