Home / 12,271.86-18,408.40-3,508.07

Finding the Fourth Proportional to 12,271.86, 18,408.40 and 3,508.07

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Solution

The fourth proportional to 12,271.86, 18,408.40 and 3,508.07 is: 5,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,271.86 : 18,408.40 = 3,508.07 : x
  2. Step 2: Convert to fraction form
    12,271.86/18,408.40 = 3,508.07/x
  3. Step 3: Cross multiply
    12,271.86x = 18,408.40 × 3,508.07
  4. Step 4: Simplify right side
    12,271.86x = 64,577,854.98
  5. Step 5: Solve for x
    x = 64,577,854.98/12,271.86
  6. Step 6: Final answer
    x = 5,262.27

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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.