Home / 15,450.91-21,322.08-8,736.61

Finding the Fourth Proportional to 15,450.91, 21,322.08 and 8,736.61

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Solution

The fourth proportional to 15,450.91, 21,322.08 and 8,736.61 is: 12,056.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,450.91 : 21,322.08 = 8,736.61 : x
  2. Step 2: Convert to fraction form
    15,450.91/21,322.08 = 8,736.61/x
  3. Step 3: Cross multiply
    15,450.91x = 21,322.08 × 8,736.61
  4. Step 4: Simplify right side
    15,450.91x = 186,282,697.35
  5. Step 5: Solve for x
    x = 186,282,697.35/15,450.91
  6. Step 6: Final answer
    x = 12,056.42

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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.