Home / 16,807.85-25,215.89-5,121.07

Finding the Fourth Proportional to 16,807.85, 25,215.89 and 5,121.07

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Solution

The fourth proportional to 16,807.85, 25,215.89 and 5,121.07 is: 7,682.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,807.85 : 25,215.89 = 5,121.07 : x
  2. Step 2: Convert to fraction form
    16,807.85/25,215.89 = 5,121.07/x
  3. Step 3: Cross multiply
    16,807.85x = 25,215.89 × 5,121.07
  4. Step 4: Simplify right side
    16,807.85x = 129,132,277.96
  5. Step 5: Solve for x
    x = 129,132,277.96/16,807.85
  6. Step 6: Final answer
    x = 7,682.86

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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.