Home / 13,622.93-18,800.19-7,654.58

Finding the Fourth Proportional to 13,622.93, 18,800.19 and 7,654.58

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Solution

The fourth proportional to 13,622.93, 18,800.19 and 7,654.58 is: 10,563.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,622.93 : 18,800.19 = 7,654.58 : x
  2. Step 2: Convert to fraction form
    13,622.93/18,800.19 = 7,654.58/x
  3. Step 3: Cross multiply
    13,622.93x = 18,800.19 × 7,654.58
  4. Step 4: Simplify right side
    13,622.93x = 143,907,464.37
  5. Step 5: Solve for x
    x = 143,907,464.37/13,622.93
  6. Step 6: Final answer
    x = 10,563.62

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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.