Home / 15,692.58-21,674.92-11,731.28

Finding the Fourth Proportional to 15,692.58, 21,674.92 and 11,731.28

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Solution

The fourth proportional to 15,692.58, 21,674.92 and 11,731.28 is: 16,203.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,692.58 : 21,674.92 = 11,731.28 : x
  2. Step 2: Convert to fraction form
    15,692.58/21,674.92 = 11,731.28/x
  3. Step 3: Cross multiply
    15,692.58x = 21,674.92 × 11,731.28
  4. Step 4: Simplify right side
    15,692.58x = 254,274,555.50
  5. Step 5: Solve for x
    x = 254,274,555.50/15,692.58
  6. Step 6: Final answer
    x = 16,203.49

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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.