Home / 15,769.92-21,762.37-8,696.34

Finding the Fourth Proportional to 15,769.92, 21,762.37 and 8,696.34

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Solution

The fourth proportional to 15,769.92, 21,762.37 and 8,696.34 is: 12,000.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.92 : 21,762.37 = 8,696.34 : x
  2. Step 2: Convert to fraction form
    15,769.92/21,762.37 = 8,696.34/x
  3. Step 3: Cross multiply
    15,769.92x = 21,762.37 × 8,696.34
  4. Step 4: Simplify right side
    15,769.92x = 189,252,968.73
  5. Step 5: Solve for x
    x = 189,252,968.73/15,769.92
  6. Step 6: Final answer
    x = 12,000.88

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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.