Home / 15,629.34-21,568.52-8,914.80

Finding the Fourth Proportional to 15,629.34, 21,568.52 and 8,914.80

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Solution

The fourth proportional to 15,629.34, 21,568.52 and 8,914.80 is: 12,302.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,629.34 : 21,568.52 = 8,914.80 : x
  2. Step 2: Convert to fraction form
    15,629.34/21,568.52 = 8,914.80/x
  3. Step 3: Cross multiply
    15,629.34x = 21,568.52 × 8,914.80
  4. Step 4: Simplify right side
    15,629.34x = 192,279,042.10
  5. Step 5: Solve for x
    x = 192,279,042.10/15,629.34
  6. Step 6: Final answer
    x = 12,302.44

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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.