Home / 15,898.68-21,940.40-8,825.56

Finding the Fourth Proportional to 15,898.68, 21,940.40 and 8,825.56

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Solution

The fourth proportional to 15,898.68, 21,940.40 and 8,825.56 is: 12,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.68 : 21,940.40 = 8,825.56 : x
  2. Step 2: Convert to fraction form
    15,898.68/21,940.40 = 8,825.56/x
  3. Step 3: Cross multiply
    15,898.68x = 21,940.40 × 8,825.56
  4. Step 4: Simplify right side
    15,898.68x = 193,636,283.84
  5. Step 5: Solve for x
    x = 193,636,283.84/15,898.68
  6. Step 6: Final answer
    x = 12,179.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.