Home / 18,308.40-27,450.46-6,620.10

Finding the Fourth Proportional to 18,308.40, 27,450.46 and 6,620.10

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Solution

The fourth proportional to 18,308.40, 27,450.46 and 6,620.10 is: 9,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.40 : 27,450.46 = 6,620.10 : x
  2. Step 2: Convert to fraction form
    18,308.40/27,450.46 = 6,620.10/x
  3. Step 3: Cross multiply
    18,308.40x = 27,450.46 × 6,620.10
  4. Step 4: Simplify right side
    18,308.40x = 181,724,790.25
  5. Step 5: Solve for x
    x = 181,724,790.25/18,308.40
  6. Step 6: Final answer
    x = 9,925.76

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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.