Home / 18,745.74-28,109.33-6,261.48

Finding the Fourth Proportional to 18,745.74, 28,109.33 and 6,261.48

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Solution

The fourth proportional to 18,745.74, 28,109.33 and 6,261.48 is: 9,389.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,745.74 : 28,109.33 = 6,261.48 : x
  2. Step 2: Convert to fraction form
    18,745.74/28,109.33 = 6,261.48/x
  3. Step 3: Cross multiply
    18,745.74x = 28,109.33 × 6,261.48
  4. Step 4: Simplify right side
    18,745.74x = 176,006,007.61
  5. Step 5: Solve for x
    x = 176,006,007.61/18,745.74
  6. Step 6: Final answer
    x = 9,389.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.