Home / 16,969.02-25,457.10-5,121.75

Finding the Fourth Proportional to 16,969.02, 25,457.10 and 5,121.75

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Solution

The fourth proportional to 16,969.02, 25,457.10 and 5,121.75 is: 7,683.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.02 : 25,457.10 = 5,121.75 : x
  2. Step 2: Convert to fraction form
    16,969.02/25,457.10 = 5,121.75/x
  3. Step 3: Cross multiply
    16,969.02x = 25,457.10 × 5,121.75
  4. Step 4: Simplify right side
    16,969.02x = 130,384,901.93
  5. Step 5: Solve for x
    x = 130,384,901.93/16,969.02
  6. Step 6: Final answer
    x = 7,683.70

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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.