Home / 18,348.78-25,321.05-10,172.16

Finding the Fourth Proportional to 18,348.78, 25,321.05 and 10,172.16

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Solution

The fourth proportional to 18,348.78, 25,321.05 and 10,172.16 is: 14,037.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.78 : 25,321.05 = 10,172.16 : x
  2. Step 2: Convert to fraction form
    18,348.78/25,321.05 = 10,172.16/x
  3. Step 3: Cross multiply
    18,348.78x = 25,321.05 × 10,172.16
  4. Step 4: Simplify right side
    18,348.78x = 257,569,771.97
  5. Step 5: Solve for x
    x = 257,569,771.97/18,348.78
  6. Step 6: Final answer
    x = 14,037.43

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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.