Home / 18,738.24-28,104.12-6,426.24

Finding the Fourth Proportional to 18,738.24, 28,104.12 and 6,426.24

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Solution

The fourth proportional to 18,738.24, 28,104.12 and 6,426.24 is: 9,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,738.24 : 28,104.12 = 6,426.24 : x
  2. Step 2: Convert to fraction form
    18,738.24/28,104.12 = 6,426.24/x
  3. Step 3: Cross multiply
    18,738.24x = 28,104.12 × 6,426.24
  4. Step 4: Simplify right side
    18,738.24x = 180,603,820.11
  5. Step 5: Solve for x
    x = 180,603,820.11/18,738.24
  6. Step 6: Final answer
    x = 9,638.25

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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.