Home / 18,538.57-25,583.07-10,155.07

Finding the Fourth Proportional to 18,538.57, 25,583.07 and 10,155.07

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Solution

The fourth proportional to 18,538.57, 25,583.07 and 10,155.07 is: 14,013.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538.57 : 25,583.07 = 10,155.07 : x
  2. Step 2: Convert to fraction form
    18,538.57/25,583.07 = 10,155.07/x
  3. Step 3: Cross multiply
    18,538.57x = 25,583.07 × 10,155.07
  4. Step 4: Simplify right side
    18,538.57x = 259,797,866.66
  5. Step 5: Solve for x
    x = 259,797,866.66/18,538.57
  6. Step 6: Final answer
    x = 14,013.91

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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.