Home / 15,898.35-21,940.28-8,824.89

Finding the Fourth Proportional to 15,898.35, 21,940.28 and 8,824.89

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Solution

The fourth proportional to 15,898.35, 21,940.28 and 8,824.89 is: 12,178.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,898.35 : 21,940.28 = 8,824.89 : x
  2. Step 2: Convert to fraction form
    15,898.35/21,940.28 = 8,824.89/x
  3. Step 3: Cross multiply
    15,898.35x = 21,940.28 × 8,824.89
  4. Step 4: Simplify right side
    15,898.35x = 193,620,513.44
  5. Step 5: Solve for x
    x = 193,620,513.44/15,898.35
  6. Step 6: Final answer
    x = 12,178.65

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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.