Home / 16,815.81-25,223.70-7,929.07

Finding the Fourth Proportional to 16,815.81, 25,223.70 and 7,929.07

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Solution

The fourth proportional to 16,815.81, 25,223.70 and 7,929.07 is: 11,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,815.81 : 25,223.70 = 7,929.07 : x
  2. Step 2: Convert to fraction form
    16,815.81/25,223.70 = 7,929.07/x
  3. Step 3: Cross multiply
    16,815.81x = 25,223.70 × 7,929.07
  4. Step 4: Simplify right side
    16,815.81x = 200,000,419.90
  5. Step 5: Solve for x
    x = 200,000,419.90/16,815.81
  6. Step 6: Final answer
    x = 11,893.59

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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.