Home / 18,130.73-25,020.47-10,172.43

Finding the Fourth Proportional to 18,130.73, 25,020.47 and 10,172.43

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Solution

The fourth proportional to 18,130.73, 25,020.47 and 10,172.43 is: 14,037.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,130.73 : 25,020.47 = 10,172.43 : x
  2. Step 2: Convert to fraction form
    18,130.73/25,020.47 = 10,172.43/x
  3. Step 3: Cross multiply
    18,130.73x = 25,020.47 × 10,172.43
  4. Step 4: Simplify right side
    18,130.73x = 254,519,005.07
  5. Step 5: Solve for x
    x = 254,519,005.07/18,130.73
  6. Step 6: Final answer
    x = 14,037.99

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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.