Home / 15,451.92-21,322.75-8,738.95

Finding the Fourth Proportional to 15,451.92, 21,322.75 and 8,738.95

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Solution

The fourth proportional to 15,451.92, 21,322.75 and 8,738.95 is: 12,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.92 : 21,322.75 = 8,738.95 : x
  2. Step 2: Convert to fraction form
    15,451.92/21,322.75 = 8,738.95/x
  3. Step 3: Cross multiply
    15,451.92x = 21,322.75 × 8,738.95
  4. Step 4: Simplify right side
    15,451.92x = 186,338,450.92
  5. Step 5: Solve for x
    x = 186,338,450.92/15,451.92
  6. Step 6: Final answer
    x = 12,059.25

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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.