Home / 18,331.69-27,500.51-5,678.49

Finding the Fourth Proportional to 18,331.69, 27,500.51 and 5,678.49

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Solution

The fourth proportional to 18,331.69, 27,500.51 and 5,678.49 is: 8,518.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,331.69 : 27,500.51 = 5,678.49 : x
  2. Step 2: Convert to fraction form
    18,331.69/27,500.51 = 5,678.49/x
  3. Step 3: Cross multiply
    18,331.69x = 27,500.51 × 5,678.49
  4. Step 4: Simplify right side
    18,331.69x = 156,161,329.56
  5. Step 5: Solve for x
    x = 156,161,329.56/18,331.69
  6. Step 6: Final answer
    x = 8,518.66

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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.