Home / 15,930.63-22,006.76-12,764.95

Finding the Fourth Proportional to 15,930.63, 22,006.76 and 12,764.95

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Solution

The fourth proportional to 15,930.63, 22,006.76 and 12,764.95 is: 17,633.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,930.63 : 22,006.76 = 12,764.95 : x
  2. Step 2: Convert to fraction form
    15,930.63/22,006.76 = 12,764.95/x
  3. Step 3: Cross multiply
    15,930.63x = 22,006.76 × 12,764.95
  4. Step 4: Simplify right side
    15,930.63x = 280,915,072.22
  5. Step 5: Solve for x
    x = 280,915,072.22/15,930.63
  6. Step 6: Final answer
    x = 17,633.64

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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.