Home / 10,968.71-16,455.49-5,122.13

Finding the Fourth Proportional to 10,968.71, 16,455.49 and 5,122.13

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Solution

The fourth proportional to 10,968.71, 16,455.49 and 5,122.13 is: 7,684.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,968.71 : 16,455.49 = 5,122.13 : x
  2. Step 2: Convert to fraction form
    10,968.71/16,455.49 = 5,122.13/x
  3. Step 3: Cross multiply
    10,968.71x = 16,455.49 × 5,122.13
  4. Step 4: Simplify right side
    10,968.71x = 84,287,076.72
  5. Step 5: Solve for x
    x = 84,287,076.72/10,968.71
  6. Step 6: Final answer
    x = 7,684.32

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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.