Home / 15,704.69-21,673.85-8,632.49

Finding the Fourth Proportional to 15,704.69, 21,673.85 and 8,632.49

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Solution

The fourth proportional to 15,704.69, 21,673.85 and 8,632.49 is: 11,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,704.69 : 21,673.85 = 8,632.49 : x
  2. Step 2: Convert to fraction form
    15,704.69/21,673.85 = 8,632.49/x
  3. Step 3: Cross multiply
    15,704.69x = 21,673.85 × 8,632.49
  4. Step 4: Simplify right side
    15,704.69x = 187,099,141.85
  5. Step 5: Solve for x
    x = 187,099,141.85/15,704.69
  6. Step 6: Final answer
    x = 11,913.59

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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.