Home / 15,814.52-21,824.10-8,644.58

Finding the Fourth Proportional to 15,814.52, 21,824.10 and 8,644.58

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Solution

The fourth proportional to 15,814.52, 21,824.10 and 8,644.58 is: 11,929.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,814.52 : 21,824.10 = 8,644.58 : x
  2. Step 2: Convert to fraction form
    15,814.52/21,824.10 = 8,644.58/x
  3. Step 3: Cross multiply
    15,814.52x = 21,824.10 × 8,644.58
  4. Step 4: Simplify right side
    15,814.52x = 188,660,178.38
  5. Step 5: Solve for x
    x = 188,660,178.38/15,814.52
  6. Step 6: Final answer
    x = 11,929.55

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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.