Home / 16,969.12-25,457.34-5,121.91

Finding the Fourth Proportional to 16,969.12, 25,457.34 and 5,121.91

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Solution

The fourth proportional to 16,969.12, 25,457.34 and 5,121.91 is: 7,683.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.12 : 25,457.34 = 5,121.91 : x
  2. Step 2: Convert to fraction form
    16,969.12/25,457.34 = 5,121.91/x
  3. Step 3: Cross multiply
    16,969.12x = 25,457.34 × 5,121.91
  4. Step 4: Simplify right side
    16,969.12x = 130,390,204.32
  5. Step 5: Solve for x
    x = 130,390,204.32/16,969.12
  6. Step 6: Final answer
    x = 7,683.97

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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.