Home / 10,772.90-16,147.72-5,214.48

Finding the Fourth Proportional to 10,772.90, 16,147.72 and 5,214.48

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Solution

The fourth proportional to 10,772.90, 16,147.72 and 5,214.48 is: 7,816.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,772.90 : 16,147.72 = 5,214.48 : x
  2. Step 2: Convert to fraction form
    10,772.90/16,147.72 = 5,214.48/x
  3. Step 3: Cross multiply
    10,772.90x = 16,147.72 × 5,214.48
  4. Step 4: Simplify right side
    10,772.90x = 84,201,962.99
  5. Step 5: Solve for x
    x = 84,201,962.99/10,772.90
  6. Step 6: Final answer
    x = 7,816.09

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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.