Home / 15,770.09-21,763.38-8,696.97

Finding the Fourth Proportional to 15,770.09, 21,763.38 and 8,696.97

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Solution

The fourth proportional to 15,770.09, 21,763.38 and 8,696.97 is: 12,002.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,770.09 : 21,763.38 = 8,696.97 : x
  2. Step 2: Convert to fraction form
    15,770.09/21,763.38 = 8,696.97/x
  3. Step 3: Cross multiply
    15,770.09x = 21,763.38 × 8,696.97
  4. Step 4: Simplify right side
    15,770.09x = 189,275,495.57
  5. Step 5: Solve for x
    x = 189,275,495.57/15,770.09
  6. Step 6: Final answer
    x = 12,002.18

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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.