Home / 15,963.69-22,029.39-8,889.75

Finding the Fourth Proportional to 15,963.69, 22,029.39 and 8,889.75

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Solution

The fourth proportional to 15,963.69, 22,029.39 and 8,889.75 is: 12,267.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.69 : 22,029.39 = 8,889.75 : x
  2. Step 2: Convert to fraction form
    15,963.69/22,029.39 = 8,889.75/x
  3. Step 3: Cross multiply
    15,963.69x = 22,029.39 × 8,889.75
  4. Step 4: Simplify right side
    15,963.69x = 195,835,769.75
  5. Step 5: Solve for x
    x = 195,835,769.75/15,963.69
  6. Step 6: Final answer
    x = 12,267.58

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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.