Home / 16,807.09-25,214.31-5,120.02

Finding the Fourth Proportional to 16,807.09, 25,214.31 and 5,120.02

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Solution

The fourth proportional to 16,807.09, 25,214.31 and 5,120.02 is: 7,681.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.09 : 25,214.31 = 5,120.02 : x
  2. Step 2: Convert to fraction form
    16,807.09/25,214.31 = 5,120.02/x
  3. Step 3: Cross multiply
    16,807.09x = 25,214.31 × 5,120.02
  4. Step 4: Simplify right side
    16,807.09x = 129,097,771.49
  5. Step 5: Solve for x
    x = 129,097,771.49/16,807.09
  6. Step 6: Final answer
    x = 7,681.15

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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.