Home / 18,654.28-25,745.10-10,479.23

Finding the Fourth Proportional to 18,654.28, 25,745.10 and 10,479.23

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Solution

The fourth proportional to 18,654.28, 25,745.10 and 10,479.23 is: 14,462.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,654.28 : 25,745.10 = 10,479.23 : x
  2. Step 2: Convert to fraction form
    18,654.28/25,745.10 = 10,479.23/x
  3. Step 3: Cross multiply
    18,654.28x = 25,745.10 × 10,479.23
  4. Step 4: Simplify right side
    18,654.28x = 269,788,824.27
  5. Step 5: Solve for x
    x = 269,788,824.27/18,654.28
  6. Step 6: Final answer
    x = 14,462.57

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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.