Home / 10,965.74-16,455.36-5,122.94

Finding the Fourth Proportional to 10,965.74, 16,455.36 and 5,122.94

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Solution

The fourth proportional to 10,965.74, 16,455.36 and 5,122.94 is: 7,687.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.74 : 16,455.36 = 5,122.94 : x
  2. Step 2: Convert to fraction form
    10,965.74/16,455.36 = 5,122.94/x
  3. Step 3: Cross multiply
    10,965.74x = 16,455.36 × 5,122.94
  4. Step 4: Simplify right side
    10,965.74x = 84,299,821.96
  5. Step 5: Solve for x
    x = 84,299,821.96/10,965.74
  6. Step 6: Final answer
    x = 7,687.56

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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.