Home / 16,991.28-25,482.96-7,129.44

Finding the Fourth Proportional to 16,991.28, 25,482.96 and 7,129.44

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Solution

The fourth proportional to 16,991.28, 25,482.96 and 7,129.44 is: 10,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,991.28 : 25,482.96 = 7,129.44 : x
  2. Step 2: Convert to fraction form
    16,991.28/25,482.96 = 7,129.44/x
  3. Step 3: Cross multiply
    16,991.28x = 25,482.96 × 7,129.44
  4. Step 4: Simplify right side
    16,991.28x = 181,679,234.34
  5. Step 5: Solve for x
    x = 181,679,234.34/16,991.28
  6. Step 6: Final answer
    x = 10,692.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.