Home / 15,694.85-21,653.61-8,887.94

Finding the Fourth Proportional to 15,694.85, 21,653.61 and 8,887.94

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Solution

The fourth proportional to 15,694.85, 21,653.61 and 8,887.94 is: 12,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.85 : 21,653.61 = 8,887.94 : x
  2. Step 2: Convert to fraction form
    15,694.85/21,653.61 = 8,887.94/x
  3. Step 3: Cross multiply
    15,694.85x = 21,653.61 × 8,887.94
  4. Step 4: Simplify right side
    15,694.85x = 192,455,986.46
  5. Step 5: Solve for x
    x = 192,455,986.46/15,694.85
  6. Step 6: Final answer
    x = 12,262.37

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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.