Home / 18,451.39-27,678.64-5,804.05

Finding the Fourth Proportional to 18,451.39, 27,678.64 and 5,804.05

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Solution

The fourth proportional to 18,451.39, 27,678.64 and 5,804.05 is: 8,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,451.39 : 27,678.64 = 5,804.05 : x
  2. Step 2: Convert to fraction form
    18,451.39/27,678.64 = 5,804.05/x
  3. Step 3: Cross multiply
    18,451.39x = 27,678.64 × 5,804.05
  4. Step 4: Simplify right side
    18,451.39x = 160,648,210.49
  5. Step 5: Solve for x
    x = 160,648,210.49/18,451.39
  6. Step 6: Final answer
    x = 8,706.56

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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.