Home / 18,775.47-25,910.30-10,277.55

Finding the Fourth Proportional to 18,775.47, 25,910.30 and 10,277.55

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Solution

The fourth proportional to 18,775.47, 25,910.30 and 10,277.55 is: 14,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,775.47 : 25,910.30 = 10,277.55 : x
  2. Step 2: Convert to fraction form
    18,775.47/25,910.30 = 10,277.55/x
  3. Step 3: Cross multiply
    18,775.47x = 25,910.30 × 10,277.55
  4. Step 4: Simplify right side
    18,775.47x = 266,294,352.38
  5. Step 5: Solve for x
    x = 266,294,352.38/18,775.47
  6. Step 6: Final answer
    x = 14,183.10

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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.