Home / 10,972.78-16,455.09-3,950.89

Finding the Fourth Proportional to 10,972.78, 16,455.09 and 3,950.89

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Solution

The fourth proportional to 10,972.78, 16,455.09 and 3,950.89 is: 5,924.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.78 : 16,455.09 = 3,950.89 : x
  2. Step 2: Convert to fraction form
    10,972.78/16,455.09 = 3,950.89/x
  3. Step 3: Cross multiply
    10,972.78x = 16,455.09 × 3,950.89
  4. Step 4: Simplify right side
    10,972.78x = 65,012,250.53
  5. Step 5: Solve for x
    x = 65,012,250.53/10,972.78
  6. Step 6: Final answer
    x = 5,924.87

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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.