Home / 10,990.56-16,482.96-5,141.28

Finding the Fourth Proportional to 10,990.56, 16,482.96 and 5,141.28

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Solution

The fourth proportional to 10,990.56, 16,482.96 and 5,141.28 is: 7,710.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.56 : 16,482.96 = 5,141.28 : x
  2. Step 2: Convert to fraction form
    10,990.56/16,482.96 = 5,141.28/x
  3. Step 3: Cross multiply
    10,990.56x = 16,482.96 × 5,141.28
  4. Step 4: Simplify right side
    10,990.56x = 84,743,512.59
  5. Step 5: Solve for x
    x = 84,743,512.59/10,990.56
  6. Step 6: Final answer
    x = 7,710.57

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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.