Home / 10,994.56-16,488.96-5,145.28

Finding the Fourth Proportional to 10,994.56, 16,488.96 and 5,145.28

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Solution

The fourth proportional to 10,994.56, 16,488.96 and 5,145.28 is: 7,716.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,994.56 : 16,488.96 = 5,145.28 : x
  2. Step 2: Convert to fraction form
    10,994.56/16,488.96 = 5,145.28/x
  3. Step 3: Cross multiply
    10,994.56x = 16,488.96 × 5,145.28
  4. Step 4: Simplify right side
    10,994.56x = 84,840,316.11
  5. Step 5: Solve for x
    x = 84,840,316.11/10,994.56
  6. Step 6: Final answer
    x = 7,716.57

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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.