Home / 15,795.38-21,800.14-12,012.46

Finding the Fourth Proportional to 15,795.38, 21,800.14 and 12,012.46

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Solution

The fourth proportional to 15,795.38, 21,800.14 and 12,012.46 is: 16,579.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,795.38 : 21,800.14 = 12,012.46 : x
  2. Step 2: Convert to fraction form
    15,795.38/21,800.14 = 12,012.46/x
  3. Step 3: Cross multiply
    15,795.38x = 21,800.14 × 12,012.46
  4. Step 4: Simplify right side
    15,795.38x = 261,873,309.74
  5. Step 5: Solve for x
    x = 261,873,309.74/15,795.38
  6. Step 6: Final answer
    x = 16,579.11

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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.