Home / 15,638.73-21,583.97-8,926.58

Finding the Fourth Proportional to 15,638.73, 21,583.97 and 8,926.58

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Solution

The fourth proportional to 15,638.73, 21,583.97 and 8,926.58 is: 12,320.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,638.73 : 21,583.97 = 8,926.58 : x
  2. Step 2: Convert to fraction form
    15,638.73/21,583.97 = 8,926.58/x
  3. Step 3: Cross multiply
    15,638.73x = 21,583.97 × 8,926.58
  4. Step 4: Simplify right side
    15,638.73x = 192,670,882.37
  5. Step 5: Solve for x
    x = 192,670,882.37/15,638.73
  6. Step 6: Final answer
    x = 12,320.11

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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.