Home / 13,622.19-18,797.61-7,654.86

Finding the Fourth Proportional to 13,622.19, 18,797.61 and 7,654.86

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Solution

The fourth proportional to 13,622.19, 18,797.61 and 7,654.86 is: 10,563.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.19 : 18,797.61 = 7,654.86 : x
  2. Step 2: Convert to fraction form
    13,622.19/18,797.61 = 7,654.86/x
  3. Step 3: Cross multiply
    13,622.19x = 18,797.61 × 7,654.86
  4. Step 4: Simplify right side
    13,622.19x = 143,893,072.88
  5. Step 5: Solve for x
    x = 143,893,072.88/13,622.19
  6. Step 6: Final answer
    x = 10,563.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.